Topic

Body weight and composition

Weight on the scale, waist size, and how much of that weight is fat.

This page is not a ranking. Ingredients appear in order of how much we have read here.

The 5 things measured here · ingredients read against each

Read here so far: 16 questions across 11 ingredients

L-Carnitine

L-Carnitine and Body fat percentageOne source, found no clear differenceLow certainty, level 2 of 4
L-Carnitine and Body weightOne source, measured lowerLow certainty, level 2 of 4
L-Carnitine and Fat massOne source, measured lowerLow certainty, level 2 of 4

5-HTP

5-HTP and Body weightOne source, measured lowerLow certainty, level 2 of 4
5-HTP and Dietary Energy ConsumedOne source, measured lowerLow certainty, level 2 of 4

Creatine

Creatine and Body fat percentageTwo sources, all measured lowerModerate certainty, level 3 of 4
Creatine and Body weightTwo sources, all measured higherModerate certainty, level 3 of 4

Piperine

Piperine and Body weightTwo sources, saying different thingsLow certainty, level 2 of 4
Piperine and Waist circumferenceTwo sources, all measured lowerLow certainty, level 2 of 4

Ashwagandha

Ashwagandha and Body fat percentageOne source, found no clear differenceModerate certainty, level 3 of 4

Chromium

Chromium and Body weightTwo sources, saying different thingsLow certainty, level 2 of 4

Curcumin

Curcumin and Body weightOne source, measured lowerModerate certainty, level 3 of 4

Ginger

Ginger and Body weightOne source, measured lowerModerate certainty, level 3 of 4

Ginkgo biloba

Ginkgo biloba and Waist circumferenceOne source, measured lowerLow certainty, level 2 of 4

Psyllium

Psyllium and Body weightOne source, found no clear differenceLow certainty, level 2 of 4

Tongkat Ali

Tongkat Ali and Fat massOne source, measured lowerLow certainty, level 2 of 4

Where the sources say different things

Every side in full, because one line would have to pick one of them.

Each bar is one source’s range, drawn against the line of no difference: left of the line is lower, right is higher. Widths are not comparable between rows.

Chromium and body weight
Two sources here, and they say different things: one measured lower body weight and one found no clear difference.
Low certainty, level 2 of 4The sources say different things
One source’s range, crossing no difference: these numbers fit no effect too. The sources here say different things. Systematic review, 2024
Piperine and body weight
Two sources here, and they say different things: one measured lower body weight and one found no clear difference.
Low certainty, level 2 of 4The sources say different things
No number has been put on this yet.

How much of this is one source

Read from 17 sources. 11 of the 16 questions here rest on a single source with nothing yet to check them against, and on 2 questions the sources say different things.

What is still to read is kept per ingredient, not per topic, so every ingredient named above carries its own list.

Still to read means nobody here has got to it, not that it was tried and did nothing or that no research exists. A pairing on no list is not a gap: we never set out to read it.

The other 14 topics

This is a library, not advice. No recommendation, no dose, no diagnosis, no ranking. We never ask about your symptoms, and nothing here is tailored to you.