Jardiance (empagliflozin) belongs to a class of medicines known as sodium-glucose co-transporter 2 (SGLT2) inhibitors. These drugs help the kidneys remove excess sugar by passing it into the urine, which lowers blood sugar and reduces cardiovascular risk.
Jardiance is approved to treat type 2 diabetes, heart failure, and chronic kidney disease, and is not approved for weight loss. However, because glucose in the urine also carries calories, people taking Jardiance often experience modest weight loss.
This article reviews how Jardiance works, the science behind its effects on body weight, the evidence for weight reduction in non-diabetic adults, and how it compares with other weight-loss drugs. If you are curious about using this medication for weight loss, read on to understand its benefits and risks.
How does Jardiance lower blood sugar?
Jardiance is the brand name for empagliflozin, a medication that blocks a protein in the kidneys called the sodium-glucose co-transporter 2 (SGLT2). Under normal circumstances, your kidneys filter glucose out of the blood and then reabsorb most of it.
By inhibiting the SGLT2 protein, empagliflozin stops the reabsorption of glucose, allowing it to pass into the urine. This mechanism lowers blood sugar levels and reduces the workload on the kidneys.
Approved uses and benefits beyond glucose control
Although weight loss may occur, Jardiance is primarily prescribed for the following reasons:
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- Type 2 diabetes: Jardiance is approved for adults and children aged 10 years and older with type 2 diabetes to lower blood glucose levels and improve HbA1c (a three-month average blood sugar measurement).
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- Heart failure: Large randomized trials found that SGLT2 inhibitors reduce the risk of cardiovascular death and hospitalization for heart failure. Jardiance is therefore approved for people with heart failure regardless of whether they have diabetes.
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- Chronic kidney disease: Jardiance slows the progression of kidney disease and lowers the risk of kidney failure and hospitalization.
Many physicians prescribe Jardiance even to people without diabetes when they have heart failure or chronic kidney disease.
How does Jardiance cause weight loss?
Empagliflozin leads to modest weight loss through two main processes:
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- Caloric loss via glucose excretion – When sugar leaves the body through urine, calories go with it. This creates a mild calorie deficit, similar to cutting back on sugar in your diet.
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- Mild diuretic effect – The extra glucose in the urine pulls water with it, resulting in increased urination and a small loss of water weight.
Over time, some of the weight lost reflects reductions in fat mass. Studies using imaging showed decreases in total fat mass, including belly fat and visceral fat (fat around organs), after 24 weeks of empagliflozin therapy.
How much weight can you lose on Jardiance?

In people with type 2 diabetes, Jardiance typically leads to modest weight loss. In one long-term study lasting 90 weeks, participants lost about 2.2 to 4.0 kg (4.9 to 8.8 lbs).
Shorter studies show similar trends, with about 3.7 lbs lost at 12 weeks and roughly 4.2 lbs at 24 weeks. Waist size also shrank slightly, by about half an inch.
In people without diabetes, the evidence is more limited.
A 2021 meta-analysis looking at SGLT2 inhibitors in non-diabetic adults with overweight or obesity found an average weight loss of about 1.42 kg (3.1 lbs) more than placebo. BMI dropped slightly, and waist circumference decreased by just over a centimeter. However, researchers rated the evidence as low quality, meaning confidence in the results is limited.
There is some emerging research combining empagliflozin with other medications.
In one small study, pairing empagliflozin with topiramate and calorie restriction led to nearly 9% weight loss over 12 weeks, compared with about 5% with diet alone.
Because the weight change is small and can vary from person to person, healthcare providers generally do not prescribe Jardiance solely for weight loss. Instead, they may recommend lifestyle changes or weight loss medicines specifically approved for obesity.
Will Jardiance suppress appetite?
Jardiance does not appear to work by suppressing appetite.
Researchers have looked at whether it changes appetite-related hormones to explain its weight effects. In one study, they measured:
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- PYY, a hormone that signals fullness
- GLP-1, which also promotes satiety
- Ghrelin, the hormone that stimulates hunger
After 24 weeks, people taking empagliflozin alone lost about 2.22 kg (4.9 lbs). Those combining empagliflozin with a calorie-restricted diet lost 5.74 kg (12.6 lbs). However, there were no significant differences in hunger hormones between groups. Participants also reported similar levels of hunger.
The weight loss is likely due to calorie loss through urine, and not appetite suppression.
Jardiance vs. Ozempic
Ozempic (semaglutide) is a GLP-1 receptor agonist approved to treat type 2 diabetes and used off-label for obesity. Ozempic works differently, slowing gastric emptying and reducing appetite, leading to a more substantial calorie deficit. Jardiance primarily causes sugar and water excretion, so its effect on appetite is minimal.
In a meta-analysis, semaglutide 1 mg resulted in about 4 to 5 lbs greater weight loss than empagliflozin, while 0.5 mg led to roughly 1 to 2 lbs more loss.
Jardiance vs. Metformin
Metformin, a first-line oral diabetes medication, helps with weight loss primarily by reducing appetite, lowering calorie intake, and improving insulin sensitivity. This typically leads to modest, long-term weight reduction.
One of the most studied trials on metformin and weight loss is the Diabetes Prevention Program and its long-term follow-up. On average, people who took metformin lost 2-3% of their body weight, while those on placebo stayed roughly the same.
About 29% of metformin users lost at least 5% of their starting weight after the first year, compared with 13% of those taking a placebo. Waist size also went down by about 2 cm (0.8 in).
After two years, those who stayed on the medication remained 3.5% below their starting weight, while less consistent users regained most of it. More importantly, no safety concerns were reported during the 10-year follow-up.
In a separate study, overweight and obese adults took metformin for six months at doses of up to 2,500 mg per day. By the end of the study, participants lost an average of 5.8 kg (12.8 lbs), which was roughly 5.6% of their body weight.
Common and serious side effects of Jardiance
Common side effects of Jardiance include:
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- Frequent urination and increased thirst, resulting from glucose and water leaving the body.
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- Urinary tract infections and genital yeast infections, particularly in women and uncircumcised men. Good hygiene and prompt treatment with antifungal or antibiotic medications can help.
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- Nausea or joint pain.
Serious side effects are uncommon but can include:
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- Dehydration, leading to dizziness and low blood pressure. Drinking adequate fluids and limiting diuretics such as caffeine and alcohol are important.
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- Diabetic ketoacidosis, especially in situations of illness, fasting, or when insulin doses are missed. Symptoms include nausea, vomiting, abdominal pain, and difficulty breathing, and require immediate medical attention.
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- Hypoglycemia (low blood sugar) when combined with other diabetes medicines such as insulin or sulfonylureas. Early signs include hunger, trembling, sweating, and confusion.
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- Necrotizing fasciitis of the perineum (Fournier’s gangrene), a rare but serious infection that needs urgent treatment.
If you experience any symptoms of dehydration, infection, severe abdominal pain, or allergic reaction (swelling of the face, lips, or throat), contact a healthcare professional right away.
Considering Jardiance for weight loss when you don’t have diabetes
While Jardiance may lead to modest weight loss, it is not a weight loss drug. The US prescribing information emphasizes that the medication is meant to lower blood sugar and reduce cardiovascular risks. Using it solely for weight loss could expose you to dehydration, genital infections, and other side effects without significant benefit.
Always speak with a healthcare professional before using any prescription medicine for off-label purposes. They can assess your health status, discuss safer weight-loss options, and help you create a comprehensive plan involving nutrition, physical activity, stress management, and, if appropriate, FDA-approved weight-loss medications.
Alternatives for non-diabetic weight management
Discuss these alternatives with your healthcare team to find a safe and effective approach tailored to your needs.
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- Lifestyle modifications – Balanced, high-fiber diets, regular exercise, adequate sleep, and stress reduction remain the foundation of healthy weight loss.
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- Approved weight-loss medications – GLP-1 receptor agonists (semaglutide, liraglutide), GIP/GLP-1 dual agonists (tirzepatide), phentermine/topiramate, or orlistat are options for people with obesity. They are more effective for weight reduction than SGLT2 inhibitors but carry their own side effects.
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- Bariatric surgery – In severe obesity, surgical interventions may offer substantial and durable weight loss.
Bottom line
Reported weight loss with Jardiance varies, generally falling between 3 and 12 lbs. Unlike GLP-1 medications such as semaglutide, Jardiance does not suppress appetite. The small weight reduction seen with empagliflozin is mainly due to calorie loss through urinary glucose excretion and mild fluid loss.
If your goal is meaningful weight reduction, lifestyle changes and FDA-approved obesity treatments are usually more effective options. Always consult your healthcare provider to determine the safest and most appropriate plan for your individual health needs.
Frequently Asked Questions
Related Articles
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