GLP-1 medications can produce significant weight loss by reducing appetite, calorie intake, cravings, and food reward. Clinical trials show that many people lose a meaningful percentage of body weight over several months when these drugs are paired with lifestyle changes.
However, rapid appetite suppression often leads to unintended nutritional gaps. Many people fall short on protein, fiber, and essential micronutrients, while gastrointestinal side effects can further limit food intake and variety. Over time, this increases the risk of fatigue, digestive problems, nutrient deficiencies, and muscle loss if nutrition is not managed deliberately.
These issues can undermine long-term results. Loss of lean mass can slow metabolism and raise the risk of weight regain. At the same time, low intakes of protein, vitamins, and minerals may contribute to weakness, hair thinning, constipation, or poor medication tolerance.
This guide breaks down which supplements can best support GLP-1 medications for faster, healthier weight loss.
GLP-1 Medications for Weight Loss
GLP-1 is a hormone that the gut naturally produces in response to eating. It signals the brain to reduce appetite and also helps regulate blood sugar. GLP-1 receptor agonist drugs mimic this hormone’s effects. They slow stomach emptying, increase feelings of fullness, and reduce “food noise” or cravings.
They also enhance insulin release, which lowers blood sugar, while suppressing glucagon, which raises blood sugar. The result is less hunger and lower calorie intake, leading to weight loss.
The most common GLP-1 drugs used for weight management include:
Semaglutide
Semaglutide is available in three brand-name forms: Ozempic (a weekly injection for type 2 diabetes), Wegovy (a higher-dose weekly injection specifically for obesity), and Rybelsus (a daily oral tablet for type 2 diabetes).
Semaglutide is very potent. In a 68-week trial, patients on semaglutide 2.4 mg (Wegovy) lost about 15% of their body weight on average, compared to ~2.4% in those on placebo. Over half of the semaglutide group lost at least 15% of their weight. While Rybelsus is typically used for blood sugar management at lower doses (7 mg or 14 mg), newer clinical data from 2025 has shown that higher-dose oral semaglutide (25 mg or 50 mg) can achieve weight loss results nearly identical to the injectable versions. This level of weight loss approaches what is seen with some bariatric surgeries.
Liraglutide
Sold as Victoza (daily injection for diabetes) and Saxenda (daily injection for weight loss at a higher dose). Liraglutide can help patients lose around 5-7% of body weight on average at the Saxenda dose, though individual results vary. It’s an older GLP-1 agonist that also works by reducing appetite.
Tirzepatide
Brand Mounjaro (approved for diabetes) and Zepbound (approved for obesity). Tirzepatide is a dual-action drug, as it activates both GLP-1 and GIP receptors, and has shown even greater weight loss in trials. Some patients lost 20% or more of body weight over ~72 weeks.
GLP-1 medications have changed how obesity is treated, helping many people lose weight after years of struggling. However, these drugs can cause side effects such as nausea, vomiting, diarrhea, or constipation. And because they strongly reduce appetite, some people also end up eating less than their body needs.
Fast weight loss can also lead to muscle loss if it is not managed carefully. Losing muscle is not ideal. Muscle helps keep your metabolism steady and supports strength and long-term health. That is why proper nutrition and the right supplements matter when using GLP-1 medications.
Best Supplements to Take With GLP-1 for Weight Loss
Remember to consult with your healthcare provider before starting any new supplement, especially if you have existing health conditions or take other medications.
1. Essential Nutrient Supplements
One of the first things to address when you’re losing weight on a GLP-1 medication is basic nutrition. Because these drugs blunt your appetite, you will likely eat less food, often 16% to 39% fewer calories, according to a 2024 review.
While cutting calories is the goal for weight loss, the downside is that you might not get enough vitamins and minerals from a smaller amount of food. Nutrient shortfalls are common even in the general US adult population. Many people don’t meet recommended intakes for vitamins A, C, D, E, K, calcium, magnesium, etc.
Taking a daily multivitamin is a simple way to cover your bases. A quality multivitamin will provide a broad spectrum of essential nutrients, often around 20+ vitamins and minerals.
Here are specific nutrients worth highlighting:
Vitamin D (with Calcium)
Vitamin D is crucial for bone health, immune function, and even muscle function. It’s often deficient in the general population and especially in people with obesity or those who stay mostly indoors.
Adequate vitamin D levels have also been associated with better weight loss outcomes in some studies, possibly because vitamin D is involved in fat cell metabolism and insulin sensitivity.
Weight loss can sometimes lead to bone density loss, and GLP-1 medications have been linked to a slight decrease in bone density in some patients, partly because of the weight loss and possibly an effect on bone turnover.
Calcium works hand-in-hand with vitamin D to keep bones strong. If your dietary intake of dairy or calcium-rich foods is low, you should ensure adequate calcium supplementation.
Many multivitamins will include some calcium and vitamin D, but often not the full daily amount because calcium is bulky. Check your multivitamin’s content, you might need an additional calcium + D supplement if you’re not hitting about 1000-1200 mg of calcium and 800-2000 IU of vitamin D per day through diet and the multi combined.
Vitamin B12
Vitamin B12 is important for red blood cell production, nerve health, and energy metabolism. It’s found in animal foods (meat, fish, dairy) and some fortified foods. When you’re eating a lot less, especially if you’ve cut down on animal protein due to reduced appetite, B12 can become insufficient.
Additionally, many people with obesity or diabetes are on metformin (a common diabetes medication), which is known to deplete B12 over time. If you happen to be on metformin and a GLP-1 drug, monitoring B12 is extra important.
A true vitamin B12 deficiency is uncommon unless you have long-term poor intake or absorption issues. However, even slightly low B12 levels can contribute to fatigue, especially during dieting. Taking a supplement can help maintain adequate B12 levels and support steady energy.
Magnesium
Magnesium is a mineral involved in hundreds of biochemical reactions, including energy production, muscle function, and nerve signaling. It’s also something many people don’t get enough of. Magnesium is commonly lacking in the standard diet due to not eating enough greens, nuts, and whole grains.
For someone on a GLP-1 medication, magnesium deserves special mention for two reasons. First, it helps convert food into cellular energy and supports muscle and heart function. Second, it can help with constipation, which is a frequent side effect of GLP-1 drugs.
In addition, magnesium supports muscle relaxation and better sleep for some people, which indirectly can help weight management since poor sleep can hinder weight loss. A supplement dose of around 200-400 mg of magnesium daily is common. You might start on the lower end and see how you tolerate it.
Many multivitamins contain only a small amount of magnesium, so a separate magnesium supplement might be needed if you want the full benefit. Magnesium glycinate is a form that’s gentle on the stomach and good for general supplementation.
Other Vitamins/Minerals
As long as you take a multivitamin, you should be covered for most others, like vitamin A, B6, vitamin C, vitamin K, selenium, iodine, etc. However, listen to your body and your doctor’s advice.
For example:
How to take a multivitamin?
Take your multivitamin with food for better absorption and to reduce the chances of an upset stomach. Since GLP-1 meds slow gastric emptying, you might want to take the multivitamin with a meal or at a time of day when your stomach isn’t too full to avoid any nausea.
Also note, a multivitamin is generally safe, but more is not better. Stick to one daily unless your doctor suggests higher doses of specific nutrients.
2. Protein Supplements
A protein supplement is one of the best additions to GLP-1 therapy for faster and healthier weight loss. It ensures the weight you lose is primarily fat while your muscles are fed and maintained.
How does protein help with weight loss?
Protein provides the essential amino acid building blocks for muscle repair and growth.
Muscle is a metabolically active tissue. It burns more calories than fat at rest, and it contributes to strength, balance, and overall functional health. If you lose a lot of muscle, your metabolic rate drops, which could slow your weight loss and make it easier to regain weight later.
Muscle tissue is estimated to burn about 4.5 to 7 calories per pound each day. Using this estimate, researchers suggest that muscle accounts for roughly 20% of daily calorie burn, while fat tissue contributes about 5% in people with around 20% body fat.
High-protein diets have been proven to help with weight loss in multiple ways:
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- They increase satiety since protein is the most filling macronutrient
- They increase thermogenesis, which means that digesting protein actually burns more calories than digesting carbs or fat
- They help protect lean body mass during caloric deficits
How to take protein supplements?
A whey protein shake or a plant-based protein powder (such as pea protein) can be an easy way to boost your protein intake without too much volume. For example, a typical protein shake can pack 20-30 grams of protein in one drink.
The GLP-1 patient guidelines from experts recommend 20-30 grams of protein per meal, aiming for about 1-1.5 grams of protein per kilogram of body weight per day. Some sources even suggest up to 2.0 g/kg/day for active individuals or those on aggressive weight loss.
If you weigh 90 kg (~198 lbs), that means ~90-135 grams of protein daily as a goal. Achieving this through food alone, when your appetite is small, can be tough. Thus, consider drinking a protein shake daily, for instance, in the morning or post-workout, to get 25 grams of protein easily. This can make a big difference in hitting your targets.
A narrative review in Obesity Pillars (2025) noted that protein supplementation can help patients on GLP-1 agonists meet higher protein targets and that whey protein, combined with resistance training, significantly preserves lean body mass during weight loss.
Which protein supplement is best?
Whey protein (derived from milk) is a popular choice because it’s rich in essential amino acids and leucine, which triggers muscle building, and is easy to absorb. Whey comes in different forms, concentrate and isolate. Isolate has minimal lactose if you’re sensitive to dairy.
If you are vegan or dairy-intolerant, plant proteins like pea, rice, or soy protein powders are good alternatives. Some brands even blend multiple plant sources to improve the amino acid profile. Aim for a product with minimal added sugar, preferably <5g sugar per serving, and around 20-30g protein per scoop.
You can mix it with water or almond milk, or blend it into a smoothie with a bit of fruit. If you prefer not to drink shakes, there are also protein-rich snacks like protein bars and high-protein Greek yogurt that can serve a similar purpose. But shakes are often easiest when your appetite is low.
Tip: Many patients on GLP-1 agonists experience taste changes or aversions. If you find you can’t stomach certain meats or textures, a flavored shake can be a lifesaver to get protein down. One could, for instance, have a morning smoothie with protein powder, some spinach (for extra nutrients), and berries. This can deliver 25g+ of protein plus vitamins, which nicely complements the multivitamin.
3. Creatine
Another supplement for muscle preservation is creatine monohydrate. Creatine is one of the most researched supplements in the fitness world, known for its ability to boost muscle strength and size, in conjunction with resistance training.
It’s a naturally occurring compound, made of three amino acids, that our body produces and stores in muscles. It helps rapidly regenerate ATP, the energy currency of cells, especially during short bursts of high-intensity activity. By supplementing with creatine, muscles can store more of it, which improves performance in strength training and can lead to increased muscle fiber retention and growth over time.
Normally, creatine is found in meat and fish, but the doses used for benefits are higher than what you’d get from diet alone.
Why use creatine with GLP-1 medications?
The main reason is to combat the muscle loss that can accompany rapid weight loss. As we discussed, losing muscle can reduce your metabolic rate and weaken your body.
Creatine helps ensure that more of the weight you lose is fat, not muscle. It does this through several mechanisms:
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- Enhanced muscle protein synthesis: Creatine supplementation can directly stimulate pathways that build and repair muscle fibers.
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- Reduced muscle breakdown: It seems to create an intracellular environment less prone to muscle catabolism during calorie deficits.
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- Improved training performance: If you’re exercising (which you should, even just light workouts), creatine gives you a bit more strength and endurance for anaerobic activities, meaning you can maintain higher-quality workouts despite eating at a deficit. This helps you keep muscle.
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- Cell hydration (volumization): Creatine draws water into muscle cells, which not only can increase muscle fullness but is thought to send anabolic (growth) signals to the muscle.
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- Activation of muscle stem cells (satellite cells): Some research suggests that creatine can help with the activation of these cells that aid in muscle repair and growth.
Is creatine safe?
Yes, for healthy individuals, creatine monohydrate has an excellent safety profile. It’s perhaps the most studied supplement ever, with studies spanning decades.
Long-term studies also found that it does not cause kidney damage in healthy people, which is a common myth. The only issue is if you have pre-existing severe kidney disease, and even then, it’s not clearly harmful, but would be used with caution.
The main side effects can be minor. Some people get stomach upset if they take too much at once on an empty stomach, and creatine can cause a slight weight increase initially, due to water being stored in muscles, which is actually a good thing for muscle function.
During weight loss, a slight increase in water stored in muscle is not body fat and is nothing to worry about. It may actually help offset the deflated or “flattened” appearance that some people notice during rapid weight loss, including changes often seen with GLP-1 medications.
How to use creatine?
The standard recommended dose is 3-5 grams per day of creatine monohydrate. Plain monohydrate is the gold standard and most cost-effective. Some people do a “loading phase” of ~20g/day for 5 days (split into 4 doses) to saturate muscles faster, but this isn’t strictly necessary.
You can simply take 5g every day. Timing isn’t critical, though some prefer taking it post-workout with a small amount of carbs, since insulin helps muscle cells absorb creatine.
If you’re not working out, you can take it in the morning or with a meal. Creatine is flavorless, and you can stir the powder into water, juice, or your protein shake. Ensure you’re staying well-hydrated. Creatine pulls water into muscles, so you might need a bit of extra fluid intake.
4. Fiber Supplements
Dietary fiber is your friend when trying to lose weight. You probably already know that eating fiber-rich foods can help fill you up on fewer calories. But when you’re on a GLP-1 medication, fiber plays some additional important roles.
GLP-1 drugs slow down gastric emptying (how fast food leaves your stomach), and fiber also slows digestion and adds bulk. This combination can lead to even greater feelings of fullness and appetite control. Additionally, a common side effect of GLP-1 therapy is constipation (due to slowed GI motility), and getting enough fiber helps.
How does fiber aid weight loss?
Fiber, especially soluble fiber, forms a gel in the gut that slows the absorption of nutrients and prolongs satiety. It basically helps you feel full on fewer calories. Certain fibers also modulate hormones related to hunger. For example, soluble fiber can ferment in the colon, producing short-chain fatty acids, which in turn can stimulate the release of GLP-1 naturally in the gut.
So, fiber can boost your body’s own GLP-1 secretion, complementing the medication’s effects. A high-fiber intake has been linked with easier weight loss and maintenance in numerous studies.
One specific fiber supplement that’s often highlighted is glucomannan, which is derived from konjac root. Glucomannan is an extremely viscous soluble fiber that expands in your stomach. It’s been studied as a weight loss supplement.
One meta-analysis found that glucomannan led to about ~1 kg (about 2 lbs) more weight loss than placebo on average in overweight/obese adults. In some smaller trials, people taking glucomannan before meals lost weight, about 5.5 lbs (~2.5 kg) over 8 weeks in one study.
Other fibers like psyllium husk (the fiber in Metamucil) are also effective for promoting fullness and regularity. It’s also excellent for constipation relief because it adds bulk and retains water in the stool.
Inulin (a prebiotic fiber) is another supplement that can be mixed into drinks or yogurt to bump up fiber intake, and it also feeds healthy gut bacteria.
How to take fiber supplements?
There are several options:
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- Psyllium husk powder – You can mix 1 teaspoon or one packet (typically ~3-5 g fiber) in a large glass of water once or twice a day. If you do this before a meal, it can reduce how much you eat. Even taken at bedtime, it will help with next-day bowel movements.
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- Glucomannan capsules or powder – Often around 1 gram per dose, taken 2-3 times a day before meals. Ensure at least 8 oz of water per gram, and be cautious to avoid choking. Always take fiber supplements with water.
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- Fiber gummies or chewables – Some prefer a chewable form, which can provide ~5 g fiber per serving (commonly using fibers like inulin). These are convenient, but watch out for any added sugars.
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- Whole food fiber supplements – Such as ground flaxseed or chia seeds. These can be mixed into foods and provide fiber as well as healthy omega-3 fats (flax/chia swell and gel up, helping with fullness).
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- Prebiotic fiber blends – Some supplements combine different types (acacia fiber, FOS, etc.) to target gut bacteria. These can be fine too, mainly for gut health and mild fiber increase.
When upping fiber, do it gradually to prevent gas or bloating. Also, always drink plenty of fluids, as fiber needs water to do its job effectively. Since GLP-1 medications already encourage you to drink a lot to avoid dehydration, pair your fiber with those fluids.
Note: Fiber supplements can interfere with the absorption of certain medications if taken at the same time. This can include:
- Thyroid medications
- Antidepressants
- Diabetes drugs
- Cholesterol drugs
- Seizure medications
- Common drugs like aspirin, ibuprofen, and penicillin
- Blood thinners
This isn’t a huge issue with GLP-1 injections, but if you take other oral meds or an oral GLP-1 (like Rybelsus), separate the timing. Usually, take medications at least 1 hour before fiber or 2 hours after to be safe.
5. Probiotics and Gut Health
The gut microbiome, the trillions of bacteria in your digestive tract, is involved in processes related to weight regulation and metabolic health.
Research has shown that the composition of gut bacteria in lean vs. obese individuals differs, and that manipulating the microbiome can influence weight in animals. While the science in humans is still evolving, certain probiotics (beneficial bacteria) and prebiotics (foods or supplements that feed those good bacteria) show promise in supporting weight loss.
Moreover, since GLP-1 medications exert effects partly in the gut, maintaining a healthy gut environment may enhance tolerance and even the effectiveness of the therapy.
Probiotic strains for weight management
One probiotic strain that has shown promise is Lactobacillus gasseri (particularly a strain called L. gasseri BNR17). It may help reduce body fat, especially belly fat, and could potentially support or extend the weight-loss effects seen with GLP-1 medications.
In a 12-week trial, overweight adults with a BMI between 25 and 35 took 10 billion CFU per day of L. gasseri BNR17. Compared with placebo, they experienced:
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- About a 22 cm² reduction in visceral (deep abdominal) fat
- A smaller waist circumference
Even a lower dose of 1 billion CFU per day led to a reduction in waist size.
Researchers believe this probiotic increases production of short-chain fatty acids (SCFAs), which can trigger appetite-reducing gut hormones such as GLP-1 and PYY, and improve the gut barrier, which supports metabolic health.
Another strain includes Lactobacillus and Bifidobacterium species.
In a small pilot study involving 27 adults with obesity, researchers found that adding a multispecies probiotic (containing 2.5 billion CFU per gram of Bifidobacterium and Lactobacillus) to a low-dose liraglutide showed similar weight loss to higher-dose liraglutide alone.
At the same time, people taking the probiotic experienced fewer digestive side effects. About 59.3% of participants in the probiotic group reported only mild, short-term gastrointestinal symptoms, and no one stopped treatment because of side effects.
In contrast, a comparable study using higher-dose liraglutide without probiotics reported digestive side effects in about 80.3% of participants, with more treatment interruptions.
The researchers suggested that better tolerability may be due to the probiotic helping restore gut bacteria balance, normalize gut acidity, strengthen the intestinal barrier, and reduce low-grade inflammation.
Probiotics for side effect management
Beyond weight, probiotics can help with side effect management:
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- If you have antibiotic-associated diarrhea or a history of GI upset, a probiotic could keep things balanced.
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- If the GLP-1 causes you diarrhea, a probiotic with Saccharomyces boulardii or certain Bifidobacteria might help firm things up.
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- If you have constipation, certain Bifidobacterium longum or Lactobacillus plantarum strains may assist in promoting regularity (combined with fiber intake).
Which probiotic to choose?
Look for a high-quality probiotic supplement that provides well-researched strains. Often these come as a capsule containing multiple strains with a potency of 10 billion or 50 billion CFUs.
Some reputable strains for weight or metabolic health include:
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- Lactobacillus gasseri BNR17
- Lactobacillus rhamnosus GG or CGMCC1.3724
- Bifidobacterium lactis B420 (studied for body fat reduction)
- Bifidobacterium breve (some strains showed reduced fat in trials)
If you can’t find these specifics, a broad-spectrum probiotic from a trusted brand can still help overall gut health.
Additionally, prebiotics like inulin, fructooligosaccharides (FOS), or resistant starch can be used to feed your existing good bacteria. Some supplements combine probiotics and prebiotic fiber (“synbiotics”).
You can also get natural prebiotics by eating:
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- Asparagus
- Garlic
- Onions
- Bananas
- Oats
- Fermented foods like yogurt, kefir, kimchi, or kombucha
Caution: When starting probiotics, a few people experience mild gas or an unsettled stomach initially as their microbiome adjusts. This typically subsides after a few days. Start with a lower dose if concerned (maybe every other day, then daily). Also, if you are severely immunocompromised or have certain medical conditions, consult a doctor first, as probiotic use in those settings should be monitored.
6. Omega-3 Fatty Acids
Omega-3 fatty acids, commonly taken as fish oil supplements, are well-known for their heart health and anti-inflammatory benefits. But they also have some interesting connections to body composition and weight management.
How do omega-3 fatty acids aid weight loss?
The main omega-3s in fish oil are EPA and DHA. They help reduce chronic inflammation, improve blood lipid profiles, and even influence gene expression related to fat burning.
In obesity, chronic inflammation is often present and can interfere with metabolism and insulin sensitivity. By taking omega-3s, you might create a more favorable metabolic environment for weight loss.
In a study with 39 adults with obesity, participants who took 6 g of omega-3 per day for 8 weeks lost an average of 6.04 kg (~13.3 lb), compared with 5.4 kg (~11.9 lb) in the placebo group. The omega-3 group also showed a greater reduction in body fat mass.
Another study included 65 women, and those who took omega-3 supplements containing 1.08 g EPA and 0.72 g DHA daily for 12 weeks lost an average of 3.07 kg (~6.8 lb), compared with 1.16 kg (~2.6 lb) in the placebo group.
A meta-analysis involving 617 overweight or obese adults found that omega-3 intake led to reductions in waist circumference (by about 0.5 cm) and lowered triglyceride levels, a type of blood fat linked to heart disease.
In people with type 2 diabetes, participants showed improvements in several cardiometabolic markers, including:
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- Lower total cholesterol
- Triglycerides
- HbA1c
- Lower C-reactive protein levels, suggesting less inflammation
- Higher HDL or “good” cholesterol
The strongest evidence comes from a meta-analysis of 90 randomized controlled trials with over 72,000 participants. This analysis found that higher omega-3 intake led to greater reductions in triglycerides and non-HDL cholesterol.
The effects were most noticeable in people with high cholesterol, overweight or obesity, or heart disease, especially at doses above 2 g per day or when combined with cholesterol-lowering medications.
How to take omega-3s?
A common dose is around 1000-2000 mg of combined EPA and DHA per day.
For example, if a fish oil capsule is 1000 mg, check the label. It might contain about 300 mg EPA and 200 mg DHA (500 mg total omega-3 per capsule). In that case, taking two or three capsules a day would give ~1000-1500 mg of omega-3.
It’s best to take fish oil with meals to enhance absorption and reduce any fishy aftertaste/burps. Alternatively, if you don’t like capsules, you can use liquid fish oil or even get omega-3s from algae-based supplements if you’re vegetarian (algal oil provides DHA mainly).
For those who prefer not to take a supplement, you could try to eat fatty fish, such as salmon, mackerel, and sardines, 2-3 times a week as an equivalent. But many find a supplement more convenient to ensure daily intake.
Note: Higher doses (like 3000 mg EPA+DHA) can be used but might carry a slight risk of blood thinning, though usually not an issue unless you’re on anti-coagulant medications.
7. Green Tea Extract (EGCG)
To further accelerate fat loss, some people turn to metabolism-boosting supplements. Among the most evidence-backed in this category are green tea extract and caffeine.
Green tea contains catechins, with EGCG (epigallocatechin gallate) being the most potent one. Catechins are antioxidants that have a mild effect on increasing thermogenesis (heat production) and fat burning. They may also reduce appetite slightly or help the body preferentially use fat for energy.
On average, people taking green tea catechins lost or maintained about 1.31 kg (~2.9 lb) more than those not taking them.
How to take green tea supplements?
Green tea extract is safe for most people, but at very high doses, it can stress the liver. Rare cases of liver issues have been reported in people taking large amounts of green tea supplements.
Stay within the recommended dose:
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- For green tea supplements or extracts, such as capsules or powders, 338 mg of EGCG per day.
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- For green tea consumed as a beverage, a higher intake of up to 704 mg of EGCG per day may be acceptable based on reported human safety data.
8. Ginger
Ginger is best known as a natural remedy for nausea. This makes ginger highly relevant for GLP-1 users, since one of the main side effects of GLP-1 medications is nausea, sometimes accompanied by vomiting.
How does ginger aid weight loss?
A lesser-known benefit is that ginger might actually support weight loss and metabolic health. Research indicates ginger can lower blood sugar levels, improve lipid profiles, and reduce blood pressure in some cases.
It has anti-inflammatory and antioxidant effects, which are beneficial in obesity. Interestingly, ginger may preserve GLP-1 activity by inhibiting the enzyme DPP-4 that breaks down GLP-1. One animal study found that ginger could inhibit DPP-4 by 40-50% and raise circulating GLP-1 levels in rodents.
Ginger has also been found to affect satiety and calorie burn. In a small pilot study, 10 overweight men who consumed 2 g of ginger powder in a hot beverage with breakfast reported 43% reduced hunger and ate less food later, plus their bodies burned about 43 more calories that day compared to when they didn’t have ginger.
Another meta-analysis reported weight loss of 1.52 kg (~3.4 lb), with decreases of waist circumference and body fat, most effective at 2 g/day.
How to take ginger supplements?
Ginger can be consumed fresh (grated into hot water to make tea, or added to food), in crystallized form, or as capsules/powder. For therapeutic effect:
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- Ginger tea – Steep 1-2 teaspoons of freshly grated ginger (or use a ginger tea bag) in hot water. Add lemon or a bit of honey if you like. This can be drunk in the morning or whenever nausea strikes. It’s a gentle way to consume ginger.
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- Ginger capsules/pills – These often come in 500 mg or 550 mg per capsule. A typical dose for nausea or anti-inflammatory effect is 1 g per day, which might be split into 500 mg twice a day. For instance, take one in the morning and one in the evening.
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- Ginger chews or candies – There are ginger lozenges and candies that can help with queasiness. Just watch out for sugar content if you use those frequently.
Note: Given ginger’s blood sugar-lowering properties, if you’re diabetic and on medications, inform your healthcare provider, as combining many glucose-lowering agents could theoretically risk hypoglycemia. Ginger also has a mild blood-thinning effect, so if you’re on warfarin or similar, use it in moderation and check with your doctor.
9. Chromium Picolinate
Chromium is a trace mineral that has a role in carbohydrate and fat metabolism. It’s not essential, but it could be a supportive supplement, especially if cravings for certain foods like carbs or sweets are an issue.
How does chromium aid weight loss?
There is some evidence that chromium picolinate can reduce cravings, particularly in people who struggle with binge eating or carbohydrate cravings.
The mechanism might be that chromium influences neurotransmitters in the brain that regulate appetite. Some animal studies indicate chromium can have appetite-suppressing effects when acting in the central nervous system.
A study on overweight women who reported strong carbohydrate cravings found that 1000 µg (1 mg) of chromium picolinate daily for 8 weeks reduced their food intake, hunger levels, and specifically cravings for fatty foods.
While GLP-1 medications already reduce overall appetite, some people might still experience specific cravings or habits that are hard to break. Chromium could potentially help dampen those remaining urges, making it easier to stick to a healthy eating plan.
How to take chromium supplements?
The typical effective dose used in studies is 1000 micrograms (µg) of chromium picolinate per day (which equals 1 mg of chromium). The upper safe limit isn’t clearly established, but doses up to 1000 µg are considered safe for short to medium term.
Chromium is generally safe. If you are on other glucose-lowering meds, use caution and consult your healthcare provider because it can enhance insulin action. It might increase the risk of hypoglycemia (low blood sugar).
Also, note that chromium picolinate is the most studied form for weight and cravings. Other forms, like chromium chloride or chromium nicotinate, exist, but picolinate was specifically shown to affect appetite.
10. Berberine
Berberine is a plant-derived compound found in goldenseal, barberry, and other herbs that has gained popularity as a “natural alternative” to drugs like metformin. Some enthusiasts have dubbed berberine “nature’s Ozempic.”
How does berberine work for weight loss?
Berberine activates an enzyme called AMPK (AMP-activated protein kinase) in the body. AMPK is sometimes called the “metabolic master switch” as it increases energy burning, improves insulin sensitivity, and can reduce fat accumulation.
A 2022 review found that berberine supplementation led to significant decreases in body weight and BMI compared to control groups. The weight reductions were more evident in people taking >1 gram per day for over 8 weeks.
How to take berberine supplements?
Berberine can cause gastrointestinal side effects in some people, and GLP-1 meds already cause GI side effects for many. So combining them might compound issues.
If your GI side effects from GLP-1 are mild or resolved, and you want to try berberine, start at a low dose to test tolerance.
For example, start with 500 mg once a day with a meal, then gradually increase to 500 mg twice a day, and possibly 500 mg three times a day (total 1500 mg/day) if well-tolerated. Many studies used 1500 mg to 2000 mg per day in divided doses.
Caution and interactions
Berberine can interact with other medications. It can slow down drug metabolism in the liver (CYP enzymes) and specifically has a known interaction with cyclosporine (an immunosuppressant), causing levels of that drug to increase dangerously.
It may also enhance the effects of drugs that lower blood sugar, blood pressure, or cholesterol. Always check with a doctor if you’re on multiple meds. Pregnant or breastfeeding women should avoid berberine. It’s unsafe for infants and can cause kernicterus in newborns.
Also, berberine might cause a mild bitter taste or staining of the mouth if you open capsules. Another odd side effect is that it can turn your stool yellow (berberine is a yellow pigment), which is harmless but can be surprising.
11. Natural Compounds
Researchers have studied several plant-based extracts that may support blood sugar control, weight management, or digestive comfort in ways that overlap with or complement GLP-1 medications. However, it’s important to note that none of these have been formally tested together with GLP-1 drugs, so any combined benefit remains theoretical.
Bitter Melon Extract
Bitter melon has a long history of use for blood sugar control and appears to stimulate the body’s own GLP-1 release.
Lab and animal studies show bitter melon increases GLP-1 and insulin, improving glucose tolerance. A meta-analysis of 8 trials (507 people) found reductions in:
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- Fasting glucose (~25 mg/dL)
- HbA1c (~0.2%)
- LDL cholesterol, total cholesterol, triglycerides
- Body weight (~3.45 kg or about 7.6 lb vs placebo)
Additional analyses confirmed glucose and lipid improvements, especially in people with prediabetes or diabetes.
Ceylon Cinnamon Extract
Ceylon cinnamon differs from common cassia cinnamon because it contains very little coumarin, making it safer for long-term use.
In a 12-week trial with 150 adults, 1 g/day reduced fasting glucose by 8.6 mg/dL. In a small clinical study of healthy adults, cinnamon supplementation also slowed stomach emptying and lowered post-meal glucose levels, effects similar to those seen with GLP-1 medications.
Cinnamon may also improve how the body responds to insulin. In animal studies of obesity and diabetes, Ceylon cinnamon extract enhanced insulin signaling in tissues and the brain and reduced fat buildup in the liver.
Its anti-inflammatory and antioxidant effects may further help reduce obesity-related inflammation and support insulin-producing cells, which could complement GLP-1 activity.
French Maritime Pine Bark Extract
French maritime pine bark extract comes from the Pinus pinaster tree and contains high levels of procyanidins. Clinical studies show that pine bark extract can improve blood sugar, cholesterol levels, blood pressure, and abdominal fat.
In adults with metabolic syndrome, taking 150 mg per day for six months led to meaningful improvements:
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- Fasting glucose dropped from about 123 mg/dL to 105 mg/dL
- Waist circumference decreased by about 7-8 cm
In another study, people with type 2 diabetes who took 100 mg per day for 12 weeks had lower blood glucose and better markers of blood vessel function, suggesting improved circulation and glucose control.
In mice fed a high-fat diet, pine bark extract reduced weight gain and body fat by increasing fat breakdown and encouraging white fat to behave more like calorie-burning brown fat.
Moro Blood Orange Extract
Moro blood orange is a type of orange rich in anthocyanins and other plant compounds that have been studied for weight management. Extracts made from Moro oranges have shown benefits for reducing body weight and belly fat.
In a clinical trial involving people who were overweight, taking 400 mg per day of Moro blood orange standardized extract for 6 months showed:
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- 4.2% reduction in body weight vs. 2.2% with placebo
- Waist circumference reduced by 3.9 cm vs. 1.7 cm with placebo
- Hip circumference reduced by 3.4 cm vs. 2.0 cm with placebo
- Significant reductions in both visceral fat and subcutaneous fat
These effects are thought to come from anthocyanins improving how the body handles fat. They help increase energy use, promote fat breakdown, reduce fat storage, influence appetite signals, and may improve gut bacteria balance.
Moro orange compounds also activate pathways involved in fat metabolism and have antioxidant and anti-inflammatory effects, which can support insulin sensitivity and reduce inflammation in fat tissue.
Bottom line
Targeted supplements can help address common challenges during GLP-1 use, such as nutrient shortfalls, muscle loss, digestive issues, and metabolic health. Examples include protein and creatine to support muscle, fiber and probiotics for fullness and gut health, and omega-3s or berberine to support insulin sensitivity and inflammation.
Supplements should be chosen based on individual needs, not taken all at once. Fatigue, hair changes, constipation, or blood sugar concerns each call for different strategies. Because GLP-1 medications already have strong metabolic effects, it’s important to review any supplement plan with a healthcare provider to avoid interactions and ensure safe, effective use.
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