GLP-1 Supplements: Do They Work Like Ozempic? What the Evidence Shows

Supplements promising "GLP-1 support" are everywhere, and people coming off GLP-1 medications are a big part of the audience. In a consumer survey for the Nutrition Business Journal, 35% of people who had previously used a GLP-1 medication said they use supplements to support their ongoing weight-loss journey. Among 18- to 24-year-olds who had used one, 63% said they started taking dietary supplements only after stopping the medication (Nutrition Business Journal via New Hope Network).

So do these products work? Here is what "GLP-1 supplement" means, what the research shows for the most common ingredients, and what to consider if you are on or coming off a GLP-1 medication.

What you'll learn

• What "GLP-1 supplements" are, and how they differ from GLP-1 medications
• What the research shows for berberine, fiber and other ingredients
• Safety concerns, including interactions with medicines
• What has stronger evidence if you are on or coming off a GLP-1 medication

What is a GLP-1 supplement?

GLP-1 (glucagon-like peptide-1) is a hormone your gut releases after you eat. Medications such as semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound) are built to act on the same receptors, but they are engineered to last far longer than the natural hormone.

"GLP-1 supplement" is a marketing term, not a regulatory category. It usually refers to dietary supplements whose ingredients, such as berberine, fibers, probiotics or plant extracts, are said to help the body release more of its own GLP-1. They are not GLP-1 medications. In the U.S., the FDA is not authorized to review dietary supplements for safety and effectiveness before they are marketed, unlike prescription drugs (NCCIH).

Why a supplement cannot do what a GLP-1 medication does

The natural GLP-1 your body makes has a half-life of only about 1 to 2 minutes, because an enzyme called DPP-4 and the kidneys clear it quickly (Müller et al., 2019). The medications are designed to get around that:

Even if a supplement nudges your body to release a little more GLP-1, that hormone is gone within minutes. GLP-1 medications reduced body weight by 5% to 18% in clinical trials (Mozaffarian et al., 2025); no supplement has been shown to come close.

Berberine: the most studied "GLP-1" ingredient

Berberine is a compound found in plants such as goldenseal and has been studied for its effects on blood sugar, cholesterol and body weight (NCCIH). A 2026 meta-analysis of 23 randomized trials found that berberine reduced body weight by an average of 0.88 kg (about 2 pounds) more than control groups, with no significant change in waist-to-hip ratio (Elahi Vahed et al., 2026). The authors also called for better reporting of the purity, potency and amounts of berberine used, and for fixing common problems such as a lack of blinding (Elahi Vahed et al., 2026).

Berberine also has safety considerations. Goldenseal, a source of berberine, lowered blood levels of the diabetes medicine metformin enough to potentially affect blood sugar control, and some herbs and medicines interact in harmful ways. People who are pregnant or breastfeeding should not use goldenseal, and berberine can be harmful to newborns (NCCIH).

Fiber, protein and other "GLP-1 boosting" ingredients

Fibers, proteins, fats, polyphenols and other food compounds have been studied for their effects on appetite hormones, including GLP-1. A 2026 review found a growing body of lab and animal evidence, but concluded that results in humans are still limited and at times inconsistent (Casado-Hidalgo et al., 2026).

That does not mean fiber and protein are unimportant; they are part of a healthy diet, and fiber from food together with enough fluids is recommended for the constipation that is common on GLP-1 medications (Mozaffarian et al., 2025). It means there is little evidence that a capsule of these ingredients works like a GLP-1 medication.

Safety: what to watch for

• Interactions. Some herbs and supplements interact with medicines (NCCIH). Tell your prescriber and pharmacist about everything you take, especially if you use diabetes medicines.
• Hidden drugs. Some products marketed as dietary supplements, mainly for weight loss, have been found to contain prescription drugs or ingredients not listed on the label (NCCIH).
• Look-alike drugs. Be wary of sellers who claim their product is the same as an FDA-approved GLP-1 drug, offer prices that seem too good to be true, or do not require a prescription from a licensed doctor; these are red flags the FDA lists for unapproved GLP-1 drugs (FDA).
• Pregnancy and breastfeeding. Many supplements have not been tested in pregnancy; avoid goldenseal and berberine (NCCIH).

If you are on or coming off a GLP-1 medication

Rather than looking for a supplement that mimics the medication, focus on the needs that have stronger evidence (Mozaffarian et al., 2025):

• Protect muscle with regular strength training and enough protein. See GLP-1 muscle loss: how to keep muscle.
• Cover your nutrients. Eating much less can leave gaps, and the joint advisory recommends vitamin, mineral or protein supplements as needed, based on your care team's assessment.
• Manage side effects with fluids, fiber from food and small regular meals. If you feel drained, see does Ozempic make you tired?
• Plan for after. Weight regain is common after stopping, so keep up nutrition and activity habits, and talk to your prescriber before you stop.

Common myths (quick reality check)

• Myth: GLP-1 supplements contain GLP-1. Reality: They are dietary supplements marketed to support your own GLP-1. They are not GLP-1 medications.

• Myth: Berberine is "nature's Ozempic." Reality: In a meta-analysis of 23 trials, berberine led to about 0.88 kg more weight loss than control groups, far from what GLP-1 medications achieve.

• Myth: Natural means safe. Reality: Supplements can interact with medicines, are not reviewed for safety and effectiveness before sale, and some weight-loss products have been found to contain hidden drugs.

Frequently asked questions (FAQ)

Do GLP-1 supplements work?

Not like GLP-1 medications. Your natural GLP-1 lasts only 1 to 2 minutes, and the most studied ingredient, berberine, led to an average of about 0.88 kg more weight loss than control groups. Human evidence for other ingredients is limited.

What is the best natural GLP-1 supplement?

No supplement has been shown to work like a GLP-1 medication. Berberine has the most research, with small average effects. Talk to your provider before trying any supplement, especially if you take other medicines.

Is berberine nature's Ozempic?

No. In a 2026 meta-analysis, berberine reduced body weight by about 0.88 kg more than control groups, compared with an average of 13.6 kg in a major semaglutide trial. It can also interact with medicines.

How can I increase GLP-1 naturally?

Eating triggers your gut to release GLP-1, and fiber, protein and other food compounds are being studied for their effects. Human results are limited and inconsistent, and natural GLP-1 breaks down within minutes.

Can I take supplements while on Ozempic or Zepbound?

Ask your prescriber and pharmacist first. Some supplements interact with medicines, especially diabetes medicines, and many people on GLP-1 medications need guidance on protein, vitamins and minerals.

What should I take after stopping a GLP-1?

There is no supplement proven to replace the medication. The joint nutrition advisory emphasizes protein, strength training, nutrient-rich food and vitamin or mineral supplements as needed, based on your care team's assessment.

Related guides

• GLP-1 muscle loss: how to keep muscle
• Does Ozempic make you tired?
• Supplement stack optimization: what actually works

Disclaimer and when to seek help

This article is for general education and is not medical advice. It does not replace advice from the clinician who prescribes your medication, and you should not start, stop or change any medication or supplement without talking to them. These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease. Ozempic, Wegovy, Mounjaro and Zepbound are registered trademarks of their respective owners; OurJrney is not affiliated with them.

References

1. Nutrition Business Journal editor's take, New Hope Network. "Supplements thrive alongside GLP-1 medications".
2. Müller TD, et al. "Glucagon-like peptide 1 (GLP-1)." Molecular Metabolism, 2019;30:72-130. doi:10.1016/j.molmet.2019.09.010
3. Wegovy (semaglutide) prescribing information. DailyMed, U.S. National Library of Medicine. dailymed.nlm.nih.gov
4. Zepbound (tirzepatide) prescribing information. DailyMed, U.S. National Library of Medicine. dailymed.nlm.nih.gov
5. Mozaffarian D, et al. "Nutritional priorities to support GLP-1 therapy for obesity: a joint Advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society." American Journal of Clinical Nutrition, 2025;122(1):344-367. doi:10.1016/j.ajcnut.2025.04.023
6. Elahi Vahed I, et al. "The effect of berberine on obesity indices: a systematic review and meta-analysis." International Journal of Obesity, 2026;50(1):53-73. doi:10.1038/s41366-025-01943-x
7. Casado-Hidalgo G, et al. "Dietary bioactive compounds modulating satiety and appetite: mechanisms of action." Journal of Physiology and Biochemistry, 2026;82(1). doi:10.1007/s13105-026-01185-z
8. National Center for Complementary and Integrative Health. "Goldenseal". Updated February 2025.
9. National Center for Complementary and Integrative Health. "Using Dietary Supplements Wisely".
10. U.S. Food and Drug Administration. "FDA's Concerns with Unapproved GLP-1 Drugs Used for Weight Loss".