Independent reviews of the supplements marketed around GLP-1 — rated on product quality and, separately, on how strong the human evidence actually is
“GLP-1 supplement” is used to describe two things that have almost nothing in common. Keeping them separate is the single most useful thing you can do before spending money in this category.
Vitamins, protein, fibre and electrolytes for people already taking a prescription GLP-1 who are eating substantially less. The rationale is straightforward: reduced intake creates real nutrient gaps. These products are not claiming to do anything to your hormones.
Capsules, drops and patches claiming to raise your own GLP-1 or deliver Ozempic-like results without a prescription. Harvard T.H. Chan School of Public Health has reported that experts warn these do not match the effectiveness of actual GLP-1 agonists.
A supplement can be well made, honestly labelled and third-party tested while the central claim on the bottle still rests on a mouse study. Collapsing those into one score hides exactly the thing you need to know. So every product here carries a product rating for quality, transparency and value, and a separate evidence rating for how strong the human data is behind what it claims to do.
Products for people already on a prescription GLP-1. This is the category with a coherent rationale behind it.
Products marketed as raising your own GLP-1. We review them because people are buying them — not because we think they replace medication.
The most scientifically serious company in this category, founded by microbiome researchers and the only US brand offering live Akkermansia muciniphila. Its GLP-1 claims rest largely on preclinical work, but its diabetes product has genuine human trial data.
Real clinical data on A1C for a different product; the GLP-1 mechanism itself rests largely on mouse and cell studies.
The compound behind the "nature's Ozempic" label. It is genuinely pharmacologically active, which is precisely why it carries real drug interactions — and why the comparison to semaglutide is so misleading.
Real pharmacological activity and glucose effects, but weight-loss magnitude is small — one review cited roughly 1.8 pounds.
The most recognised product in the category, built on patented Eriomin lemon extract. Notable mainly because the company's own disclaimers state it is not a GLP-1 agonist and is not a weight loss supplement.
One manufacturer-cited human study on the Eriomin ingredient reporting a 17% GLP-1 increase; no outcome data on weight.
The gut bacterium behind most "GLP-1 probiotic" products. The underlying science is real and interesting, but the leap from a mouse mechanism study to a human weight-loss claim is doing enormous unearned work.
The GLP-1 mechanism is supported by mouse and cell-model work; human weight outcome data is not established.
A prebiotic, probiotic and postbiotic blend marketed for appetite control and satiety. Representative of the wider category: plausible-sounding mechanism, ingredient-level citations, no product-level outcome evidence.
Marketed around "clinically proven probiotics" but without product-level human outcome data for the GLP-1 claim.
What the evidence shows, ingredient by ingredient.
Berberine interactions and what not to combine.
Our ranking, with the caveats stated plainly.
What actually exists if a GLP-1 is not right for you.
These reviews are for informational purposes only and are not medical advice. Dietary supplements are not reviewed by the FDA for safety or effectiveness before sale, and supplement claims are not evaluated by the FDA. Supplements can interact with prescription medication — berberine in particular has documented interactions. Talk to your clinician or pharmacist before adding any supplement, especially if you take a GLP-1 or other prescription medicine. See our full medical disclaimer.