What NIH actually says about dietary supplements and body weight

The headline sentence, printed in full

NIH's Office of Dietary Supplements publishes a consumer fact sheet on dietary supplements for weight loss. The sentence most people want is short: “there's little scientific evidence that weight-loss supplements work.”

That is the whole clause. It is not hedged into meaninglessness and it is not a promise in disguise: it says the evidence for the category is thin.

A statement about a category is not a statement about a product, and this site would make the same objection in the other direction. Nothing in that fact sheet tested Sodatide. What a category statement does is set a prior and a burden: an exception has to be shown. No published trial on the finished Sodatide formula appears in anything we have read, so every source on this site describes an ingredient or a category rather than this product.

What the same fact sheet says about probiotics and weight

The same fact sheet addresses probiotics directly, which matters because a probiotic blend is what this product is built around: “It's unclear whether probiotic supplements have any effect on weight or body fat.”

Unclear is a specific word: not no, not yes. Elsewhere NIH is more expansive and the expansion does not resolve it: “Some studies have shown that probiotics might slightly reduce body weight or body fat. Other studies have shown that probiotics have no effect or might even increase body weight.”

Studies that found a slight reduction, studies that found nothing, studies that found an increase. That is an unsettled question reported honestly.

Every one of those studies tested an identified organism. NCCIH's rule applies: “Different types of probiotics may have different effects,” in NCCIH’s words. “For example, if a specific kind of Lactobacillus helps prevent an illness, that doesn't necessarily mean that another kind of Lactobacillus or any of the Bifidobacterium probiotics would do the same thing.” The most that can be said about a probiotic that is not named is a sentence about probiotics in general, and that sentence is unclear.

What this label claims, in its own words

What does the bottle itself claim? Less than the category around it, which is worth saying. The three support lines printed beside the icons, word for word:

Metabolic & Digestive Support

Supports Appetite Control And Satiety

Promotes Energy Production From Fats

Read them as written. Support, supports, promotes. No number, no timeline, no disease named. The sales listing repeats the same three and adds nothing further. The claims page takes each of them apart.

They are structure and function claims, and FDA describes what stands behind one: “If a manufacturer or distributor makes a structure/function claim ... the firm must have substantiation that the claim is truthful and not misleading.” The substantiation is held by the firm. It is not published here.

The asterisk, and the sentence it points to

Each of those claims carries an asterisk, pointing at a sentence printed on the label: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

That is not small print in the dismissive sense. It is the most legally precise sentence on the bottle, and it says two things: nobody at FDA reviewed the claims before they were printed, and the product is not intended to do what a medicine does. NCCIH says the same from the other direction: “Many probiotics are sold as dietary supplements, which don't require FDA approval before they are marketed.”

Read together, they change the rest of the label. Supports appetite control and satiety is a permitted form of words about a bodily function, not a finding, and the asterisk is the label telling you which it is.