CocoaCocoa has a number of positive aspects as a food - in particular it is rich in anti-oxidants.
This page ignores all that - and references research that explores Cocoa's darker side:
Cocoa contains caffene, histamine, methylxanthines, biogenic amines and serotonin - other potential drug-like agents.
Also it has high levels of copper - another potentially- problematical ingredient.
Some of the problems associated with chocololate are associated with chocolate additives. In the links section I include links to some suppliers of unadulterated chocolate. The author is currently not associated with any of these suppliers - not even as a customer.
Is Chocolate Physiologically or Psychologically Addictive?
Raw Cocoa suppliersSynergy health shop
Detox Your World
Organic Chocolate — The Definitive Guide