Dr. Peter's Advice - SESSION 2

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To understand how to eat, it is essential to become aware of the macronutrient composition of foods.

Macronutrients are food ingredients that must be introduced in large quantities, as they represent the most important energy source for the body.

Carbohydrates, lipids and proteins belong to this category.

Let's see them better in detail.


Carbohydrates, or carbohydrates, are the primary fuel of the human machine. Their main task is the production of energy, which is essential for the vital processes of the organism.

The carbohydrate family is very large.

They are divided into simple carbohydrates, so called because they are biochemically less complex in structure and complex carbohydrates, so called for their significantly more elaborate biochemical structure than other carbohydrates.

The main sources of simple sugars are represented by sugar, honey, jams, sweets.

Complex sugars are those containing starch, i.e. all derivatives of cereals (bread, pasta, pizza) and tubers such as potatoes.

Digestion of complex carbohydrates is slower and more laborious than that of simple carbohydrates, so these carbohydrates result in a more gradual rise in blood sugar.

For the same reason, they are responsible for feelings of prolonged satiety, since the resulting release of energy is modulated over time.


Protides or proteins serve primarily for the construction and repair of tissues and organs.

Protein foods have two origins, we have animal proteins and vegetable proteins.

Animal sources of protein are: meat, fish, eggs and, in part, cheeses.

The vegetable ones are instead legumes (eg beans, lentils).



Lipids, also called fats, are a macronutrient with a predominantly energetic function. 

They are the most "caloric": they provide, for 1 gram, an average of 9kcal, compared to the 4 Kcal of proteins and carbohydrates.

Lipids are mainly contained in fatty condiments of animal origin such as butter, lard, cheeses, meats and in those of vegetable origin such as oil.

The human body and all its mechanisms are quite complex, which means that they require a variety and the right balance of nutrients to function optimally.

Macronutrients help us grow, develop, repair, give us energy and make us feel good and as we have seen each of them has its own role and function.

Tips from Dr. Peter SESSION 2

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