Guides

Metabolism Supplement Guides

Two guides sit here. The first explains what the ingredients in this category actually do and what the published trials used, without reference to any one product. The second is a nine-point checklist for reading any metabolism label, applied at the end to the product this desk sells.

Written to be useful to somebody who ends up buying something else.

What is here

The two guides

One about the ingredients, one about the labels they are printed on.

The metabolism supplement guide

What chromium, zinc, green tea catechins, berberine, resveratrol, silymarin, capsaicin, ginsenosides, corosolic acid and alpha lipoic acid have actually been tested for, at what doses, with what result. Nine ingredient families, each with its own published trial doses.

Read the guide

Choosing a metabolism supplement

A nine-point checklist for reading a label in this category, and then the same checklist applied to this desk's own product with the score printed, including the three points where it does badly.

Read the checklist

Neither guide names a competitor and neither ranks brands. They describe the category and a method for reading it, which is the only version of this kind of page worth a reader's time.

Where to start

Which guide to read first

Five situations, and which of the two guides each one points at.

If you are	Start with	Because
Comparing three labels with the tabs open	The checklist	Nine questions, all answerable from a product page, and most labels fail two or three of them in the first minute.
Trying to work out whether an ingredient does anything	The ingredient guide	Ten families, each with the daily amount its trials used printed beside it.
Looking at a proprietary blend and unsure what to make of it	The ingredient guide, then its blend section	The arithmetic to do is simple and the guide does it out loud.
About to buy something and wanting one sanity check	The checklist, points one, two and eight	Panel, blend count and refund window. Those three catch most of what the other six would.
Reading about this desk's own product	Either, then the ingredients page	The guides describe the category; the ingredients page applies it to one bottle.

Neither guide requires the other. They were written to be read in whichever order a question arrives in.

Both are long, and both are arranged so the section headings answer the question on their own. Somebody in a hurry can read the headings and the tables and get most of the value.

Editorial position

Why a retailer publishes a guide that argues against itself

Stated at the top rather than discovered at the bottom.

It is a fair question. A desk that earns from orders has an obvious interest in a checklist its own product passes.

The answer is that a checklist rigged to be passed is worthless, and a reader can tell. The nine points in the second guide are the ones that separate a well-made label from a badly made one in this category, and three of them are points this desk's own product does not score well on.

Printing that is not modesty. It is the only way the six points it does score well on mean anything.

What these guides will not do

They will not name a competitor, because a comparison between two products neither of which has been tested against the other is an opinion dressed as a fact.
They will not rank brands, for the same reason.
They will not recommend a dose. Doses on this website are always the dose a published trial used, printed with its source.
They will not tell you that the product this desk sells is the right answer. For three of the nine checklist points it plainly is not.

About this review

Who writes these guides?

Tian H, Guo X, Wang X, et al. Chromium picolinate supplementation for overweight or obese adults. Cochrane Database Syst Rev. 2013;2013(11):CD010063. PMID 24293292. https://pubmed.ncbi.nlm.nih.gov/24293292/
Hursel R, Viechtbauer W, Westerterp-Plantenga MS. The effects of green tea on weight loss and weight maintenance: a meta-analysis. Int J Obes (Lond). 2009;33(9):956-61. PMID 19597519. https://pubmed.ncbi.nlm.nih.gov/19597519/
Lan J, Zhao Y, Dong F, et al. Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension. J Ethnopharmacol. 2015;161:69-81. PMID 25498346. https://pubmed.ncbi.nlm.nih.gov/25498346/
Kucukgoncu S, Zhou E, Lucas KB, et al. Alpha-lipoic acid (ALA) as a supplementation for weight loss: results from a meta-analysis of randomized controlled trials. Obes Rev. 2017;18(5):594-601. PMID 28295905. https://pubmed.ncbi.nlm.nih.gov/28295905/

Written and reviewed by the Slim Metrix Team at Sllimmetrix

We write these pages from the Slim Metrix bottle artwork, the seller’s own published figures and the batch paperwork this desk holds. Two amounts exist on this product and one blend total; beside each named ingredient we print the amount the published trials used, including the places where the two are not comparable and the three places the vendor’s own documents disagree with each other. Corrections go onto the page itself and move the review date forward. Write to contact@Sllimmetrix.com. Last reviewed September 2026.

The Slim Metrix two-bottle pack, front labels, 30 capsules each

Order Slim Metrix after reading both guides

Nine ingredient families, a nine-point checklist and a product scored against it in public.

Two bottles $158 · six bottles $294 · 60-day money-back guarantee

Order Slim Metrix On The Official Website

One capsule a day · 30 per bottle · lot SLI-26/SL-5338

Keep reading

More about Slim Metrix

The ingredient guideNine families, and what each one was tested at. The checklistNine points, applied to this desk's own product. Slim Metrix ingredientsThe label, row by row.