Slim Metrix Ingredients: Ten Named Actives and Two Printed Amounts

An essential trace mineral. The body uses it in the pathway by which insulin moves glucose into cells, and the seller's framing is blood-sugar balance, carb metabolism and fewer sweet cravings.

the Cochrane review of chromium picolinate is the reference point: 200, 400, 500 and 1,000 mcg a day were the arms pooled; no dose gradient emerged. Onakpoya's 2013 meta-analysis pooled the overweight and obesity trials separately; a 2019 meta-analysis in Clinical Obesity found improvements concentrated in trials of 12 weeks or less at doses up to 400 mcg a day; and a 2024 dose-response meta-analysis pooled fourteen randomised trials; no significant change in weight, BMI, fat mass or waist.

Read the two columns together and the row describes itself: an essential mineral at a dietary top-up, in the salt every one of those reviews used.

Half a day's reference intake of a mineral involved in hundreds of enzyme reactions, including several on the metabolic side, plus immune function and hormone signalling.

Capdor's zinc meta-analysis covered fourteen reports and 3,978 people; fasting glucose fell 0.19 mmol/L overall, with a larger reduction in people who already had a metabolic condition than in healthy participants. a 2024 GRADE-assessed review pooled twenty-three trials; the authors rate the certainty of most outcomes low or very low.

This is the row where a modest amount is the right amount. Maret and Sandstead on zinc requirements explains why more is not automatically better with this mineral.

The best-standardised row on the bottle and the one with the most direct thermogenic evidence. Catechins, and EGCG in particular, are the compounds the word thermogenic usually refers to in this category.

Dulloo's 24-hour chamber study used 90 mg EGCG plus 50 mg caffeine, three times a day, with meals and measured a rise in 24-hour energy expenditure and fat oxidation. a 2011 energy-expenditure meta-analysis pooled that work: energy expenditure rose in proportion to the milligrams given, 0.4 to 0.5 kJ per mg. Hursel's 2009 meta-analysis covered the weight question directly, eleven studies; catechins moved body weight by 1.31 kg, and habitual caffeine intake above 300 mg a day blunted it.

It also carries the one published safety caution on this bottle, which is set out in full on the side effects page.

An isoquinoline alkaloid from barberry root, standardised here to 97 per cent. The sales page calls it nature's metabolic molecule, and it has the largest randomised human literature of anything in this capsule.

Yin's 2008 trial used 0.5 g three times a day, so 1,500 mg daily, over three months. Zhang's 2008 trial used 1.0 g a day against placebo for three months. Lan's 2015 meta-analysis found the pooled trials cluster around 0.9 to 1.5 g a day in divided doses, and Ju's 2018 lipid meta-analysis reported the same scale on the lipid side.

Those figures are grams a day. The whole botanical blend here is 276 mg, which is the arithmetic the section below sets out.

A stilbene polyphenol, most familiar from grape skin. Studied for metabolic markers, inflammation and body composition rather than for weight on its own.

Mousavi's dose-response meta-analysis pooled 28 trials; weight fell 0.51 kg, and the effect sat in trials under 500 mg a day running three months or longer. a 2021 umbrella review sits a level above those trials and reviews the meta-analyses rather than the trials, and grades the certainty low.

Silymarin is the flavonolignan complex from the seed, and the standardisation here is the usual one. Best known for liver support, included in metabolic formulas for its glucose work.

Voroneanu's 2016 meta-analysis found five trials, 270 patients; fasting glucose fell 26.86 mg/dL, on evidence the authors themselves call low quality. a 2025 insulin-sensitivity meta-analysis covered six studies, 673 participants, at least four weeks of supplementation each and reported a limited effect on insulin resistance.

Hermann and von Richter's interaction review also names milk thistle as a CYP2C9 inhibitor, which is the second reason the medication question on this bottle is worth asking once.

Printed at 40,000 HU on the seller's page, which is a heat rating rather than a dose. Capsaicin is the active compound and the literature behind it is about meals.

Ludy and Mattes on red pepper served 1 g of red pepper served AT a meal; the effect was larger eaten than swallowed in a capsule. Janssens on capsaicin and fullness gave 2.56 mg of capsaicin, about 1.03 g of red chilli, with every meal and measured fullness and desire to eat.

This website makes no thermogenic claim for the cayenne row and the reason is in the refusals below.

Standardised to 8 per cent ginsenosides, which is a respectable figure for a root extract. The human evidence splits cleanly in two and both halves are printed.

Vuksan's Korean red ginseng trial used 2 g at each meal, so 6 g a day, taken before eating and found better glucose and insulin regulation in well-controlled type 2 diabetes. Reeds' negative ginseng trial used 8 g a day of root extract, or 250 to 500 mg a day of ginsenoside Re, for 30 days and found nothing.

A leaf extract standardised to corosolic acid, used in folk medicine for blood sugar and studied on and off since 1940.

Stohs' banaba review is a narrative review across animal, human and in-vitro work rather than a pooled human dose. There is no pooled human dose to set beside a blend share, and this website records that rather than inventing one.

A disulphide compound the body makes and uses in mitochondrial energy metabolism. It is the row that appears on one graphic and not the other, which is why the provenance table above comes first on this page.

Kucukgoncu's weight meta-analysis pooled ten double-blind trials; 1.27 kg more weight lost than placebo, with no dose relationship detectable. a 2021 dose-response meta-analysis models the response against both the daily amount and the length of the trial.