I thought choco was good for you! Food you bastert!

How some antioxidants can harm health
Some of the plant based reducing acids, most notably oxalic and phytic, bind to needed dietary minerals, rendering them unabsorbable in the gastrointestinal tract. Some of the tannins also have this negative characteristic. Calcium and iron deficiencies are not uncommon in mideastern diets where there is high consumption of phytic acid present in beans and unleavened whole grain bread. Such antinutrients can sometimes result in deceptively high Oxygen Radical Absorbance Capacity (ORAC) ratings given to various "healthy" beverages and foods, particularly:

cocoa/chocolate, spinach, and berries - oxalic acid
whole grains, maize - phytic acid
tea - tannins
Other extremely powerful nonpolar antioxidants such as eugenol also happen to have toxicity limits that can easily be exceeded with the misuse of essential oils.

High levels of antioxidants can be powerful agents against tumours, but in some scenarios can interfere with the effects of other cancer treatments.

Recent laboratory studies suggest that at levels much higher than occur through normal diets, antioxidant vitamins such as A, E and C can have pro-oxidant effects, increasing the formation of free radicals. Natural antioxidants are always ingested together with a wide variety of flavonoids and other phytochemicals are also likely to play a part. Many supplement manufacturers supply products containing antioxidants in combination with these other natural chemicals. Another significant factor is that the mechanisms by which different antioxidants regenerate each other require balanced levels to work optimally. Newer liquid nutritional supplements using plant ionic compounds are believed to be more readily absorbed in the human body.

MAN I AM SICK OF GETTING CONTRADICTORY INFO ON WHATS THE HEALTHY SHET