Grapes

Grape skin contains a lot of health-promoting ingredients.

An excerpt from the article 18 facts about grapes

The ellagic acid contained in it supports the immune system and is an antioxidant. Myricetin lowers LDL cholesterol by increasing its absorption by white blood cells and reduces the risk of prostate and pancreatic cancer. Quercetin has anti-allergic and anti-inflammatory effects. A very high concentration of these substances was observed in the fruits of Vitis rotundifolia, a grape grown mainly in the US.