Daily gut routine
Double Wood Supplements Akkermansia Probiotic and Postbiotic, 5 Billion TFU
A once-a-day, two-capsule Akkermansia muciniphila AH39 product at 5 billion TFU, with the live or pasteurized form not stated on the label.
- Format
- Capsule, once a day
- Type
- Probiotic and postbiotic
- Cost
- $0.25 a day
- Customer rating
- 4.6 out of 5 from 363 ratings from Amazon
What customers consistently report
- Less bloating and better digestion within a few weeks
- Steadier appetite and fewer cravings
- A small, easy-to-swallow capsule at a low price per day
Those are the themes that recur across the reviews. Moderate review confidence — Amazon shows 4.6 from 363 independent ratings, the brand’s own widget shows only 3 reviews, and the company’s Trustpilot score is 3.2 from 189 reviews with billing and refund complaints that are not specific to this product.
Why it might work
Akkermansia muciniphila is a bacterium that lives in the gut’s mucus layer and feeds on it, and people with lower levels of it have been reported to have worse metabolic health. The idea behind the supplement is that adding the organism, or its pasteurized cells, supports the gut lining and the release of the hormone GLP-1, which is how the brand links it to appetite and blood sugar. In the trials, pasteurized cells, which cannot grow, were the form reported to change some metabolic measures, and in two later trials the benefits were concentrated in people with low starting Akkermansia. The brand’s GLP-1 wording comes from the organism’s biology, not from a trial of this product. The label does not let you check whether the cells are alive, how the 5 billion TFU was measured, or whether the strain is the one studied in people.
What the research supports
No trial of this product, and no human trial of its strain AH39, was found; AH39 appears only in cell and mouse work. The nearest human evidence is for pasteurized Akkermansia muciniphila MucT at 10 billion to 30 billion cells a day, in metabolic outcomes rather than gut symptoms: a 3-month trial in 32 people improved insulin sensitivity by about 29% on the pasteurized form, while a 142-person trial missed its main insulin-sensitivity endpoint. This label gives 5 billion TFU, half the dose in the first trial, and no trial of Akkermansia for bloating or IBS was found.
What the label discloses
One organism, A. muciniphila AH39, is listed with a strain designation and a count of 5 billion TFU per 50 mg serving; the label never says live or pasteurized, and the brand’s own CFU figure (50 billion per gram) works out to half the TFU count. The brand names its test laboratory (Canyonside Labs) and posts one lot’s results, which show potency in milligrams and heavy-metal and microbial limits but no cell count. There is no guarantee that the count holds through expiry.
Who this tends to suit
We match this product to people reporting general abdominal discomfort and bloating. It fits someone whose priority is a steady daily routine or resetting after a course of antibiotics or an upset. Whether it is the best fit for you depends on the rest of your answers — what you have already tried, what format you will take, and anything that has to be ruled out.
Where it may not fit
The label supports gluten-free. We flag this product for anyone pregnant or breastfeeding or taking prescription medication, and the quiz removes it rather than recommending it in those cases. That is a caution about who should be deciding, not a claim about the product. A capsule only works if you will take it once a day, every day.
Side effects and what to be aware of
About 6% of Amazon ratings are one or two stars, and a few reviewers report bloating or an upset stomach; Amazon’s summary shows 5 negative digestive mentions out of 28. The bottle says not to use it if pregnant, nursing or under 18, and to consult a physician first. The company’s Trustpilot profile (3.2 from 189 reviews) carries complaints about auto-refill charges, return shipping and refunds.
Common questions
Does Double Wood Akkermansia work?
No trial of this product was found, and the strain AH39 has only cell and mouse work behind it. Human trials of pasteurized Akkermansia muciniphila MucT at 10 to 30 billion cells a day showed mixed metabolic results: improved insulin sensitivity in 32 people over 3 months, but a missed main endpoint in 142 people over 4 months. No trial tested Akkermansia for bloating or other gut symptoms.
Is Double Wood Akkermansia live or pasteurized?
The label does not say. The brand’s product page calls it a live probiotic and says all of its 5 billion TFU are alive, while the Amazon single-bottle title calls it a postbiotic. The brand’s “50 billion CFU per gram” works out to 2.5 billion CFU per 50 mg serving, half the 5 billion TFU.
Is Double Wood Akkermansia safe, and does it have side effects?
The bottle says to consult a physician before use and not to use it if you are pregnant, nursing or under 18, and Amazon’s safety text lists upset stomach, headaches and nausea. In the human trials of pasteurized Akkermansia, the abstracts report no serious related adverse events. On Amazon, 5 of 28 digestive-effect mentions are negative, with one reviewer reporting bloating.
How much does Double Wood Akkermansia cost, and how does it compare with Pendulum?
A 120-capsule bottle is 60 servings of 2 capsules; it is $14.95 on Amazon ($0.25 a day) and $24.95 on the brand’s site ($0.42 a day, backordered when read). Pendulum’s live Akkermansia capsule is about $2.14 a day. The two print different units (this label says TFU; Pendulum’s listing says AFU) and different strains, and neither has a trial on gut symptoms.
Does Double Wood have a refund policy, and are there billing complaints?
The brand site has a money-back guarantee on the first bottle of a product within 30 days, with the customer paying return shipping; subscription orders not canceled or skipped before processing are not refundable. Its Trustpilot page (3.2 from 189 reviews) includes complaints about unwanted auto-refill, a missing delivery and a refused refund, which the brand disputes. Buying on Amazon follows Amazon’s terms for that seller.
Before you take this. Speak to a doctor or pharmacist first if you are pregnant or breastfeeding, or taking prescription medication. Nothing on this page is medical advice, and no supplement diagnoses, treats, cures or prevents disease.
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Related reading
Background on how this type of product works, read from the trial evidence.