The nutrient density of raw cacao benefits every function of the body. One of the many cool facts about chocolate is that it is the highest source of magnesium and chromium of any food! Magnesium is the most deficient mineral in the average human. All of the compounds found in raw cacao benefits longevity in humans.
~Vitamin B (1, 2, 3, 5 and 6)
~Omega 6 Fatty Acids
~Soluble Fiber (which is the type people need more of)
~Enzymes (including catalase, lipase and amylase)
~Other Beneficial Phytonutrients (such as the antioxidants already mentioned in this article)
Dr. Gabriel Cousens conducted a study on the health benefits of chocolate in February of 2008. What he discovered was that raw cacao benefits diabetics as a safe food since it raises blood sugar less than almost any other food, despite it's theobromine content! It even raises insulin sensitivity! One of the other cool facts about chocolate that he discovered was that it's not toxic to the liver (many people are falsely claiming the contrary), except when combined in large amounts with sweeteners high in fructose such as agave. This is basically the only well known clinical study done specifically on how raw cacao benefits human health.