Brewer's Yeast Makes A Comeback!

The bioavailability of zinc organically bound in yeast (as found in Brewer's Yeast) is superior when compared to zinc gluconate salts, claim two recent studies backed by Lallemand Health Ingredients. One of the studies demonstrated that zinc-enriched yeast was 3.7 times more bioavailable - absorbed and found in greater concentration than the the very popular "zinc gluconate", report the scientists.
Zinc, one of the most plentiful trace elements in the body, second only to iron, mediates many physiological functions including maintaining a healthy immune system, memory, muscle strength and endurance in adults and testosterone, IGF-! and Insulin function.

I think it would be interesting to test the bioavailability of zinc bound in yeast vs. zinc monomethionate (as found in ZMA) vs. zinc picolinate vs. zinc polynicotinate to see which is the best overall!