mineral · for weight & body composition
Zinc
The mineral itself. Which salt you take changes how much reaches you and what it has been tested for — the cold-lozenge trials used gluconate and acetate, the wound-healing trials used sulfate.
How strong is the research?
41 trials tested zinc. Body weight rose slightly and waist size fell slightly. BMI, fat mass and the appetite hormones did not really change. Even the changes that reached significance were too small to matter.
1 paper read, 1 against.
Tested as: Not standardised. 41 RCTs (44 effect sizes) of oral zinc supplementation; the review pooled across salts without separating them.
Who was studied: Adults across a range of health states
We found 1 study on this. We have not finished reading them yet, so we are not ready to say either way.