Pendulum GLP-1 Probiotic review

Our take: the small print is the review

Pendulum is a serious company. It was the first to sell live Akkermansia muciniphila, it names its strains, and its products carry some of the most candid footnotes in the supplement aisle. That candour is the most useful thing about this one.

GLP-1 Probiotic is sold as support for "your body's un-hunger hormone", with 91 per cent of people reporting fewer cravings. Read the asterisks and the page tells you what is behind that. The GLP-1 benefits are "based on preclinical studies". The product is "not intended for weight loss". And the 91 per cent comes from a consumer survey of 274 of its own customers over six weeks, with no comparison group.

Those three facts settle most of this review. There is no human trial of this product. The strongest human trial of the organism at the centre of it measured GLP-1 directly and found no significant change, at a hundred times the dose in this capsule. And the price is about $2 to $3 a day.

If you want a probiotic, there are cheaper ones with the same headline strain count. If you want help with appetite or weight, Pendulum's own label tells you this is not the product for it.

This is a desk review of the published label and the research. Nobody here has taken it.

What is in the capsule

One capsule is a serving, and a bottle holds 30. The panel — which we found on the Amazon listing rather than on Pendulum's product page — lists:

• Probiotic Blend, 500 million AFU: Clostridium butyricum WB-STR-0006, Akkermansia muciniphila WB-STR-0001 and Bifidobacterium infantis.
• Chicory inulin, 174 mg, a prebiotic fibre.

The other ingredients are microcrystalline cellulose, a hypromellose capsule and silica. The panel image also shows badges for ISO 17025 lab testing, cGMP manufacturing and third-party testing.

The blend gives one number for all three strains. Pendulum's FAQ fills one gap: it says GLP-1 Probiotic contains the same amount of Akkermansia as its single-strain Akkermansia product, which our Pendulum Akkermansia review records at 100 million AFU a capsule. That leaves about 400 million AFU split between the other two strains in undisclosed proportions. AFU counts intact cells by flow cytometry, which reads higher than the colony counts used in most probiotic research, so the figures are not directly comparable to CFU either.

Pendulum is changing its packaging, and says you may receive either an amber bottle or a white one with the same formula.

What the evidence actually is

The GLP-1 claim is preclinical — Pendulum says so

Every GLP-1 claim on the product page carries a footnote: based on preclinical studies, not intended for weight loss. The page explains the idea — Akkermansia and C. butyricum produce compounds such as propionate, butyrate and a protein called P9 that can stimulate the gut cells releasing GLP-1 — and that mechanism has been shown in cells and animals. It has not been shown for this product in people.

The one human trial that measured GLP-1 found no effect

The first randomised human trial of Akkermansia, by Depommier and colleagues in Nature Medicine in 2019, gave 10 billion bacteria a day for three months to overweight and obese volunteers, in live and pasteurised forms. It measured plasma GLP-1 directly, and it did not change significantly. The metabolic improvements came mainly from the pasteurised, dead form. That trial used a hundred times the Akkermansia in this capsule.

A 2025 trial in Cell Metabolism of a different live strain, in 58 people with overweight and type 2 diabetes, found no benefit overall — only in people who started with low levels of the bacterium.

The trial behind the strains measured blood sugar

All three species in this capsule also appear in WBF-011, a five-strain formula with inulin that Pendulum scientists gave twice a day to 76 people with type 2 diabetes for 12 weeks, published in BMJ Open Diabetes Research & Care in 2020. Its primary outcome, blood glucose after a meal, improved against placebo at p = 0.0500 — exactly on the conventional threshold — with HbA1c 0.6 points lower. That is a real if marginal glycaemic result for a different formulation, taken twice daily, in a different population. It is the lineage of Pendulum's Glucose Control product, not this one, and its reported outcomes were about blood glucose, not cravings or weight.

The customer survey

The 91 per cent with fewer cravings and 88 per cent with fewer sugar cravings come from 274 customers taking the product for six weeks. Without a placebo group, a survey of people who have chosen and paid for a product to reduce cravings cannot separate its effect from expectation, from the decision to try, or from who chose to answer. Pendulum's own FAQ describes it as an initial consumer study and says clinical trials are planned. That is an honest description, and it is also a description of a product sold before the trials.

The page also carries endorsements from a naturopath, a physician and a dietitian. Endorsements describe professional opinion, not evidence about this capsule.

The dose question

For Akkermansia, human research has used 10 billion to 150 billion cells a day. This capsule's 100 million AFU is a hundredth of the lowest of those, which is the same problem our Pendulum Akkermansia review found with the single-strain product.

For C. butyricum and B. infantis, there is no studied GLP-1 or weight dose in humans to compare against, and the label does not say how much of either is present. The 174 mg of chicory inulin is there to feed the strains; fibre research into fullness and gut health uses grams, typically 5 to 10 g a day.

Price, and what you are paying for

On 25 September 2026 Pendulum's own store listed the product at $89 for 30 capsules bought once, $64 a month on a monthly subscription, or $173 for a three-month delivery. That is $2.97 a day bought once, $2.13 on a monthly subscription and $1.92 on three months. Subscription orders ship free.

Within Pendulum's own range, its single-strain Akkermansia costs $75 bought once. For outside comparison, Codeage sells an Akkermansia product at the same 100 million AFU with 435 mg of chicory inulin at $29.99 for 90 capsules at Target — about 33 cents a day. That is a different strain, and GLP-1 Probiotic adds two more organisms, but on the strain count and inulin that can be compared, you are paying six to nine times as much.

Pendulum advertises a money-back guarantee. On its Akkermansia product the terms were 30 days from first delivery, refunded minus shipping; check that the same applies before relying on it. The product is also FSA and HSA eligible through a partner, after a health questionnaire.

The Amazon listing linked here showed 3.8 out of 5 across 650 ratings, with 15 per cent at one star, and sits in Amazon's weight loss and appetite control category — despite the footnote saying the product is not intended for weight loss.

Side effects and safety

Pendulum's FAQ is straightforward: an adjustment period of gas, bloating, nausea or loose stools is possible, usually settling within about 14 days. The strains are commensal bacteria found in healthy human guts. The product has not been studied in pregnancy, planning pregnancy or breastfeeding, which Pendulum also says.

As with any live probiotic, people with serious gut disease or a weakened immune system should ask their doctor first; ConsumerLab adds cautions around inflammatory bowel disease. Pendulum recommends refrigeration for best quality but says the bottle can travel.

Sources and shopping: what to check

• Read the footnotes on the product page. They tell you the GLP-1 evidence is preclinical and the product is not for weight loss.
• If you want Akkermansia, compare AFU per capsule and price per day with Pendulum's single-strain product and with cheaper equivalents.
• Subscriptions are much cheaper than buying once; check the cancellation and refund terms before starting one.
• If cravings are the problem, a product with human appetite trials is a better starting point than a survey.

Our commercial link points to the 30-capsule listing on Amazon; it earns a commission at no extra cost to you and has not changed the score. For the one GLP-1 supplement we have found with human trials measuring both the hormones and the weight, see our Calocurb review. Our GLP-1 explainer puts all of these against what the drugs do.