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Description
Annu rev Nutr 18:39-61, 1998.

By Type: Major product categories include pharmaceutical-grade L Carnitine, food-grade, and cosmetic-grade formulations

Studies show that zinc supplementation reduces the impact of cadmium toxicity and boosts sperm quality in smokers
Oct 30 2021;360:130145

There have also been concerns raised in the scientific literature regarding cardiovascular safety

(PubMed) Picciano MF
