Eat well to get older better:

In the absence of metabolic problems, the old persons do not need a special loss weight treatment, only a well-balanced food. But it is often mediocre eaters to the well-anchored bad habits, which oppose in a healthy diet. For our vital activities, we need energy, which we bring to our body by means of nutrients that are proteins, Lipids and carbohydrates. These nutriments are burned in cells during chemical processes that produce some energy. The heat so generated is a measure of the energy value of nutriment, measured in (kilo) calorie or in (kilo) joule ( kj )-1kcal amounts to 4.185 kj. Fats are the most energy, supplying 9kcal proteins and carbohydrates bring 4kcal by gram.