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Cocoa is rich in polyphenols, which have significant health benefits, including reduced inflammation and improved cholesterol levels. However, processing cocoa into chocolate or other products can substantially decrease the polyphenol content.
Studies reveal that cocoa is rich in flavanols, which lower blood pressure by improving nitric oxide levels and blood vessel function. Cocoa containing between 30-1,218 mg of flavanols can reduce blood pressure by an average of 2 mmHg.
Cocoa can improve blood flow and reduce cholesterol. Eating up to one serving of chocolate per day may reduce your risk of heart attack, heart failure and stroke.
Flavanols in cocoa can support neuron production, brain function and improve blood flow and supply to brain tissue. They may have a role in preventing age-related brain degeneration, such as in Alzheimer's disease, but more research is needed.
Cocoa may exert some positive effects on mood and symptoms of depression by reducing stress levels and improving calmness, contentment and overall psychological well-being. However, more research is needed.
Cocoa and dark chocolate may reduce your risk of diabetes and maintain healthy blood sugar levels. However, there are some conflicting results in the scientific evidence, so more research is needed.
Cocoa products are associated with a lower weight, and the addition of cocoa to your diet may help achieve faster weight loss. However, more research is needed on this topic to determine exactly what type and how much cocoa is ideal.
The flavanols in cocoa have been shown to have promising anti-cancer properties in test-tube and animal studies, but data from human trials is lacking.
Cocoa extract has demonstrated some anti-asthmatic properties in animal studies. However, human trials are needed before it can be recommended as a treatment.
Cocoa can promote healthy teeth by fighting bacteria that cause cavities, though this does not apply to sugar-containing products. It also promotes healthy skin by protecting it from sunlight and improving circulation, the skin surface and hydration.
For heart health, include 0.1 ounces (2.5 grams) of high-flavanol cocoa powder or 0.4 ounces (10 grams) of high-flavanol chocolate in your diet. Adding cocoa can give a delicious chocolate taste to your dishes.