Thought id re-use this post..
I took another zinc tally test today(worth a try if u suspect toxicity), i suspect im still low in zinc, i just took 30mg of chelated zinc with my chicken, sweet potato and berries post workout.
Toxicity might be harder than it seems though, i just read an except from this book on amazon:Advanced Human Nutrition By Robert E. C. Wildman, Denis M. Medeiros
'phytate present in grains and legumes can bind to zinc...however only in the presence of intraluminal calcium...oxalic acid found in teas, chocolate, berries(argh!) and spinach and polyphenols such as tannins present in teas. High fibre intake may also decrease absorption'
Most know that grains inhibit mineral absorption, but the list surprised me..how many meals do i eat one of berries, spinach, fibre, dark chocolate and tea..answer all of them!!