ZMA is the single best supplement I have ever used in my entire life. There are very few supplement that you can actually feel the difference other than stimulant which are usually pretty easy to rate by effect.
I have seen those researchs, they made me second guess the thing, what a mistake I made back then!
My take is If you train hard 3-4 days a week, you probably need an extra Zn/Mg combo. Just try It, If you can’t tell the difference, then stop using It and gain self knowledge based on experience with twenty buccs…
ALSO-Up to 5 mg of zinc is lost during ejaculation. Defiencies in zinc in males can lead to reduced sperm count and sex drive. Frequent ejaculations can lead to zinc defiency.
Perhaps folks in those studies were not…very active…
If they’re scientists, they’re not getting laid (corduroy pants and sandals with socks are not a recipe for dating success). Of course, they have the comfort of knowing there’s no study to show sex is fun.