It's perfectly realistic and more common than you think. There's plenty of evidence around which you can find with a simple google search. http://www.westonapr

It's perfectly realistic and more common than you think. There's plenty of evidence around which you can find with a simple google search. http://www.westonaprice.org/modern-diseases/copper-zinc-imbalance-unrecognized-consequence-of-plant-based-diets-and-a-contributor-to-chronic-fatigue/ http://www.westonaprice.org/modern-diseases/copper-zinc-imba...