Dark chocolate and advantages

Chocolate is derived from cocoa beans and comes in three kinds: white chocolate, milk chocolate, and dark chocolate. The most popular form of chocolate in the market is dark chocolate - although there isn't any specific definition of dark chocolate it is named as black chocolate. The strong flavour of any chocolate product depends on the portion of cocoa used in its formulation; for instance, milk chocolate is produced by mixing up powered milk, condensed milk and liquid milk; similarly, white chocolate contains milk, fat, and sugar, but does not contain any cocoa solids. The chocolate products have different names depending on the concentration or amount of the cocoa used in their production.  One kind of chocolate is dark chocolate, made purely of cocoa; it is also known as "black chocolate" or "plain chocolate", because of its dark color and solid confection. Dark chocolate is an ideal product for the people of all ages as it does not contain any kind of milk additives (or has a very small amount of milk in it); it is an amalgamation of a high amount of cocoa, fat, and sugar. Perhaps, it is the high proportion of cocoa which makes its color dark or black in outlook. Dark chocolate comes in two tastes; one is semi-sweet chocolate and another is bittersweet chocolate.  The former is used in cooking processes and has 50% sugar content and cocoa butter while the latter contains very little sugar (around 1/3), and more amounts of cocoa powder, and vanilla flavour. Bittersweet chocolate is basically chocolate liquor, with less sugar than semisweet chocolate; however, both types can be used for cooking purposes. Sweet chocolate (dark chocolate) comes with a 15% concentration of chocolate liquor and a minimum of 35% cocoa; it can be eaten as well as used in cooking. Black chocolate may also come in the form of bars with 85% cocoa and even much more: like 99%; but chocolate with such high concentration of cocoa can be rather expensive. The more amount of cocoa a chocolate has, the more expensive it will be.  Dark chocolate tends to be very highly valued among heart patients and those with cardiovascular problems as it helps to lower blood pressure by reducing cholesterol. Black or sweet chocolate is a very useful antioxidant which protects the heart from aging prematurely, and it enhances the immunity system in the fight against diseases. It is also reported that black chocolate aids in the treatment of anaemia and kidney stones. Additionally, it helps to improve the flow of blood in the body by promoting blood clotting, and stimulates the digestion process by exciting one's appetite. In most cases, black chocolate bars are given as anti-depressants; it shows that dark chocolate is very helpful in reducing depression by providing a means to relax the mind. To top it off, this kind of chocolate arouses the brain activity by slowing down its decline at old age.