many out there believe cocoa and chocolate to be purely unhealthy vices, however, there's actually many health benefits to be derived from consuming them.
It can reduce high blood pressure in your body by using the flavanols in it to increase nitric oxide levels in the blood
Flavonol-rich cocoa can also dialate your arteries and blood vessels, improving blood flow and therefore reducing your risk of having a heart attack or stroke
The polyphenols in cocoa can increase blood flow to your brain
The flavanols it contains naturally produce serotonin in your brain, the neurotransmitter responsible for producing feelings of joy or happiness
When consumed in moderation, tests have shown that cocoa flavanols can slow down carbohydrate digestion and absorbtion in the gut, improve insulin secretion, reduce inflammation, and stimulate the uptake of sugar out of blood and into muscle.
When consuming dark chocolate, which contains less sugar than any other type of chocolate, it's been found that the appetite tends to reduce and feelings of fullness increase, which prevents overeating and casual snacking, two huge factors in weight gain.
The flavanol concentration in cocoa is higher per gram than any other food. Studies on the components of cocoa find that they protect cells against damage from reactive molecules
For a more in-depth look at what exactly flavanols are and how they benefit your health, you can look here.