Did you ask yourself, what the human body is? If not, then I will answer you. The body of man, weighing 154 lb is composed of 88-99 lb of water, 35-40 lb of protein, 15-18 lb of fat, 5-7 lb of mineral salts and 1.1 - 2 lb of carbohydrates. Our body requires a steady flow of all these nutrients, as well as vitamins and other biologically active compounds to ensure the various processes of life. The nutrients in our body are complex changes and as a result they are assimilated. This process is called assimilation. Their partial destruction is simultaneously with assimilation. The break-up of substances, which are part of the cells and tissues, is called dissimilation. Both these processes are related closely. They can be called metabolism. If the metabolism is disturbed, it leads to a sharp loss or obesity. And if weight loss does not cause particular concern among women, then obesity is becoming an important issue. Weight loss meals are the surest way to keep your figure in shape. So you need to pick up such products, which do not violate your metabolism. And you need to know for this about proteins, carbohydrates, fats and vitamins more information. The protein plays an important role for our body. Healthy meals can not be without the use of protein. The major suppliers of protein are meat, fish, eggs and of carbohydrates are bread, beans, pasta. But weight loss meals require a rational ratio of proteins, fats and carbohydrates. Fat is a complex organic compound, which is based on glycerol and fatty acids. But too much fat is bad for health. If the content of fat in the blood becomes more than the norm, it leads to the defeat of the cardiovascular system, liver problems and other undesirable phenomena and obesity. Fat should be approximately 30% of total caloric intake in the diet of healthy human. When you think about weight loss meals, you should not forget about carbohydrates. Carbohydrates help the body to use of fats better. When you have excess flow and low consumption of energy a certain amount of carbohydrate converted to fat. So, you understand now, that the need to reduce calorie diet is first necessary to reduce the rate of consumption of carbohydrates.