Supplements to lose weight: which are the dangerous ones?

A review from the Journal of the International Society of Sports Nutrition can help shed some light on which weight loss supplements (or which weight loss strategies) are effective, but more importantly, it tells us which weight loss supplements are a waste of money. (i.e. they are useless) or even have contraindications (i.e. they are potentially harmful).
I decided to list them because I know how many of you are attracted by the idea of being able to use supplements to lose weight and I would like to avoid you not only losing money unnecessarily, but above all being victims of possible side effects.

In fact, every year there are cases of intoxication from supplements, cases that often have a nefarious epilogue, but of which little news and very little attention is given in our country. The reason why this happens is that, except in the sports field, it is thought that people do not buy products that come from abroad, or again, there are no market studies that clarify how many people in Italy use supplements to lose weight. .
Therefore, the importance of warning people against their purchase and consumption is underestimated.

WEIGHT LOSS SUPPLEMENTS THAT DON’T WORK
OR ARE POTENTIALLY DANGEROUS
Calcium pyruvirate, chitosan, hydroxycitric acid or HCA, chromium picolinate, l-carnitine, phosphates (ingredients of many weight loss drugs), draining / diuretic herbal supplements.

THE SUPPLEMENTS TO LOSE WEIGHT OF WHICH YOU STILL KNOW LITTLE…
Herbal supplements with a nerve / psychotropic effect; betaine; forskolin; gymnema sylvestre; chitosan; phostatidylcholine; dehydroepiandrosterone or DHEA

THE SUPPLEMENTS MAYBE EFFECTIVE
Fiber supplements (such as glucomannan); football; green tea extract; caffeine; CLA *

* warning: supplements with green tea extracts can have adverse effects on liver function: it is essential to talk to a doctor if we decide to take any supplement for both sport and weight loss.