Usually the chocolate except the cocoa contains the following:

Protein: It is essential in cell metabolism.

Fat: Their percentage varies depending on the type of chocolate.

Vitamin E is a fat-soluble protein is important for the structure of cell membranes.

Calcium, phosphorus, magnesium: Is minerals play an important role in the metabolism of bones and teeth.

Iron: It is necessary for synthesis of hemoglobin which carries oxygen in the red blood cells.

Caffeine: It is a stimulant for the central nervous system.

Copper: Contributes to iron metabolism, helps in the synthesis of melanin in the skin, the hair and helps in the central nervous system function

Vegetable substances with antioxidant properties: The cocoa from which chocolate is made, contains more than 600 vegetable substances, such as polyphenols, which have antioxidant properties. These substances neutralize free radicals of oxygen generated by the normal metabolism. Oxygen free radicals can damage cell membranes and contribute to the development of atherosclerosis, heart disease and cancer. We also have an effect on the mechanisms of aging in the body. Dietary antioxidants contained in cocoa may protect against heart disease and cancer. It should be noted that the increase of the content in cocoa chocolate increases the concentration of polyphenols.
So we see that chocolate contains many useful and beneficial ingredients. As with many good and pleasant things in our lives, when we use it properly and without exaggeration, gives us satisfaction and nutrients. In a healthy diet, cocoa and chocolate offer significant when consumed in moderation.

The protection conferred by the chocolate against heart disease and cancer due to antioxidants such as polyphenols and catechins. The antioxidants of the chocolate is more than the tea, depending on its content, in cocoa.

In conclusion, we emphasize that chocolate and cocoa when eaten in moderation, can help our body against certain degenerative diseases, heart disease and cancer. Investigations are continuing to document conclusively protective health effects of cocoa and chocolate.

It is interesting that the chocolate contains substances that affect the brain. It has been calculated that the chocolate contains more than 300 active substances. Some of these affect the human brain and release endorphins.

Endorphins are natural hormones in our bodies, which make us feel pleasantly.

Also chocolate contains small amounts of caffeine are stimulatory, iron which is useful for the treatment of anemia as well as magnesium. Magnesium when low blood increases the pains that women have before beginning their period.

Additionally chocolate contains substances that affect the neurotransmitter system on which the brain function based. Specifically, the chocolate contains tryptophan which our brains uses to synthesize serotonin.

Serotonin produces feelings of satisfaction and happiness. There are other substances in chocolate cause pleasant changes in our emotional world and at our disposal.

All these facts explain why chocolate is extremely popular and many people may have a craving for it.

Finally, I would like to emphasize that chocolate when consumed in moderation, has positive effects not only on our physical health and our mental world and our mood. The positive effects of chocolate on health increases with increasing content of cocoa due to the antioxidants in which cocoa is rich.