What is the Healthy Food ?
To stay alive our body needs energy, materials to build and regenerate its cells, and last but not the least, the microelements, which are vital for metabolism processes. If we want our body to function normally, we must know how to satisfy its nutritional needs, which have been already well recognized.
The essentials are as follows:

The amount of energy, or the calories, that we consume, must correspond to its actual expenditure. We must maintain our weight close to the ideal.