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Choosing A Formula

Choosing A Digestive Supplement: Ten Questions, Scored

Ten questions will tell you more about a digestive supplement than any front label.

They cover the panel, the doses, the shell, the testing and the way back out. At the foot of this page the same ten are applied to DigestFlow in public, and the result is 7.1 out of 10 rather than a clean sweep.

A checklist that would be useless if it were not applied to the product this desk sells, so it is applied to it, with the two low scores explained rather than softened.

The checklist

The ten questions, and why each one earns its place

Is every active weight printed?

A proprietary blend makes every other question unanswerable. If the weights are not there, stop reading the panel and start reading a different bottle.

Are the extracts standardised?

A plant weight without a percentage cannot be compared to anything. The percentage is what turns 130 mg of extract into 65 mg of the compound the studies are about.

Is the serving size unambiguous?

A bottle count divided by a serving size gives you the days. If the arithmetic is awkward, the per-day price on the front of the box is probably awkward too.

Is caffeine declared?

It hides inside green tea, guarana and yerba mate rows. A label that states a total is telling you something several of its competitors are not.

Do the ingredients match the stated purpose?

This is the question that catches the most bottles. A panel assembled for one category and sold into another is common, and it is visible in thirty seconds once you know the ingredient sets.

Is there a dose that matches published work?

One row at a researched dose is worth more than eight rows at token amounts. Pick the largest row and check it.

Is the capsule shell named?

Gelatin or hypromellose. It is a one-word answer that decides the purchase for a large number of people, and plenty of labels omit it.

Is there third-party testing published?

Not a lot number, which is an identifier, but a certificate naming a laboratory, a lot and a date. Very few products in this category publish one, and asking is still worthwhile.

Is the guarantee usable?

Length matters less than a start date stated once and who pays return postage. A window whose opening day two company documents describe differently is a window you have to read twice.

Is there a small pack to start on?

The first purchase buys information rather than a supply. A ladder that starts high forces a commitment before the information exists.

Editorial score

The same ten questions applied to DigestFlow

Question	Answer	Score	Why
Is every active weight printed?	Yes	10/10	Five rows, five weights, no proprietary blend anywhere on the artwork.
Are the extracts standardised?	Mostly	8/10	Three of five carry a percentage: 50% chlorogenic acids, 50% HCA, 45% EGCG. The other two are single compounds and need none.
Is the serving size unambiguous?	Yes	10/10	One capsule, thirty servings a container, thirty capsules a bottle. Nothing to divide.
Is caffeine declared?	Yes, twice	10/10	A 138 mg panel row and a separate Contains Caffeine line. Better than most of the shelf.
Do the ingredients match the stated purpose?	Partly	3/10	Four of the five come from the weight-management literature. Only caffeine has a measured effect on the intestine.
Is there a dose that matches published work?	One of five	4/10	138 mg of caffeine is a real dose of a studied substance. The garcinia row is about a twenty-third of its reference trial.
Is the capsule shell named?	Yes	10/10	Hypromellose, so the vegetarian question is answered on the label.
Is there third-party testing published?	No	3/10	A lot and a certificate reference are held. The document itself is not published, which is ordinary in this category and still a gap.
Is the guarantee usable?	Yes	9/10	Sixty days from purchase, with the start date documented rather than vague.
Is there a small pack to start on?	No	4/10	Two bottles at $158 is the smallest way in. A single bottle would make the first decision much easier.

Scored by this desk, on this desk's own product, and published whatever it came to. The average is 7.1 out of 10.

Two scores of three carry most of the weight in that table and both deserve a sentence rather than a number.

The ingredient match is the honest problem with this label. Green coffee bean, raspberry ketone, garcinia and green tea are the standard thermogenic set, and the NIH fact sheet on weight-loss supplements covers all four in one document. They are on a bottle sold for digestion. The mechanism that does connect to the gut is caffeine, and that is one row out of five.

The testing gap is ordinary rather than unusual. A lot reference and a certificate reference are held; the certificate itself is not published, and almost nothing on this shelf publishes one. It still scores three, because a reason everybody shares is not a reason it is fine.

The standard

What a ten out of ten would look like on this shelf

Every active weight printed, with a standardisation percentage against each extract.
A serving size that divides cleanly into the bottle count.
One or two rows at a dose a published trial actually used, for the outcome on the front of the box.
Ingredients that belong to the category the product is sold in.
A named capsule material and a plain allergen statement.
A certificate of analysis for the specific lot, naming the laboratory and the date, published rather than held.
A single-unit pack, so the first purchase is a test rather than a commitment.
A guarantee whose start date is stated once and consistently, with return postage the seller's.

No product this desk has read meets all eight. The list is worth writing down anyway, because it is what the questions are measuring against, and a reader with it in hand will out-read most supplement pages including this one.

Taking it with you

Using the checklist on a product this desk does not sell

The ten questions are deliberately about labels rather than about brands, so they travel.

Take any bottle in the aisle and run the first four in under a minute: are the weights printed, are the extracts standardised, is the serving size clean, is caffeine declared. Most products fail one of those four, and a failure there makes the remaining six impossible to answer honestly.

If all four pass, the fifth question is the one that decides it. Work out which of the five groups in the category guide the panel belongs to, and check that against what the front of the box is promising. That single comparison catches more mis-sold bottles than the other nine questions together.

If you only remember one question

Do the ingredients match the stated purpose? It is question five, it is the one this desk's own product scores worst on, and it is the one a front label is designed to stop you asking.

About this review

Sources behind this checklist

Six sources, three of them agency pages and three of them about what a label does and does not guarantee.

National Institutes of Health, Office of Dietary Supplements. Dietary Supplements for Weight Loss: Health Professional Fact Sheet. https://ods.od.nih.gov/factsheets/WeightLoss-HealthProfessional/
National Center for Complementary and Integrative Health. Probiotics: What You Need To Know. https://www.nccih.nih.gov/health/probiotics-what-you-need-to-know
National Center for Complementary and Integrative Health. Dietary and Herbal Supplements. https://www.nccih.nih.gov/health/dietary-and-herbal-supplements
Otaif KD, Adawi HA, Alfaifi FM, et al. Chlorogenic acids and caffeine in commercial green coffee bean extract supplements: quantitative assessment and evidence of mislabelling. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2026;43(6):806-818. PMID 42154619. https://pubmed.ncbi.nlm.nih.gov/42154619/
Oketch-Rabah HA, Roe AL, Rider CV, et al. United States Pharmacopeia (USP) comprehensive review of the hepatotoxicity of green tea extracts. Toxicol Rep. 2020;7:386-402. PMID 32140423. https://pubmed.ncbi.nlm.nih.gov/32140423/
U.S. Federal Trade Commission. Health Claims: advertising and marketing guidance for the supplement industry. https://www.ftc.gov/news-events/topics/truth-advertising/health-claims

Written and reviewed by the DigestFlow Team at Godigestflow

Every page, every journal post, the bottle facts and the ingredients go through review by Dr. Will Bulsiewicz, MD before they ship. We write these pages from the DigestFlow label artwork and this desk’s own order paperwork. The panel on that artwork prints a milligram for all five actives, so beside each one we print what that ingredient has actually been studied for — including the two rows whose evidence is animal work, and the one row with a measured effect on the intestine. Corrections go onto the page itself and move the review date forward. Write to [email protected]. Last reviewed September 2026 by Dr. Will Bulsiewicz, MD.

The DigestFlow two-bottle pack, front labels showing

Score DigestFlow yourself, with the bottle in hand

Ten questions, two low scores published, and sixty days from purchase if your answers come out differently from this desk's.

Two bottles $158 · six bottles $294 · 60 days from purchase

Order DigestFlow On The Official Website

One capsule a day · 30 per bottle · lot DIG-26/GO-2148

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More about DigestFlow

The five categoriesWhat each kind of digestive supplement does, and where the evidence is. This product's panelEvery row as printed, with the caution block in full. The testing gap, in detailWhat a certificate of analysis would have to contain.