1, coffee mainly contains caffeine, a variety of antioxidants and a small amount of vitamins and minerals. Caffeine is the main active ingredient of coffee, which has the functions of refreshing mind, enhancing attention and alertness. Drinking coffee in moderation can reduce the risk of diabetes, Parkinson's disease and some cardiovascular diseases. In addition, antioxidants in coffee also help to fight free radicals and reduce oxidative stress, thus helping to delay the aging process.

2. Cocoa powder is rich in antioxidants, fiber, protein and minerals (such as magnesium, iron and zinc). These ingredients are essential to keep healthy. Antioxidants in cocoa powder can help reduce inflammation, lower blood pressure and improve cardiovascular health. In addition, cocoa powder also contains alkaloids, which can stimulate the secretion of gastric juice, promote protein digestion and help to improve nutritional diarrhea. Proper consumption of cocoa powder can also improve metabolic rate and help control weight.