Flavonoids work very well combined with vitamin C. The combo can help reduce the effects of inflammatory diseases. It can also impede the spread of some viruses and bacteria, like herpes or HIV. Some scientific in vitro studies have shown that flavonoids have this effect, though this hasn’t been proven in clinical trials.
As part of their anti-inflammatory effects: cocoa and chocolate contain a type of flavonoid called flavonols that may reduce dangerous inflammation in the arteries. A study in the “American Journal of Clinical Nutrition” found that daily consumption of skim milk with 40g of unsweetened cocoa powder reduced levels of adhesion molecules in human subjects. Adhesion molecules can cause plaque buildup in the arteries, increasing the risk for heart disease, especially atherosclerosis, the hardening of the arteries