How to choose your sport proteins?
Proteins are essentials to your body working. They are a nutrient used for your muscles' construction, which is the main interest in every physical activity. They also have other functions: cells synthesis, antibodies and hormones production and they also help transporting the oxygen.
PROTEINS AND SPORTS
The average adult's body contains between 10 and 12 kilos of proteins, we found them mainly in the muscles.
Proteins' molecules are made of amino acids. You can compare amino acids to the alphabet and proteins to words which contain several amino acids. One protein will contains more than 100 amino acids.
Nine of these amino acids have to be procured by the food because they can not be created directly by your body. These nine amino acids are called "Essential amino acids".
The biologic property of a protein rests on the sequence of amino acids composing it.
High biologic quality proteins or complete proteins are brought by the food containing enough essential amino acids to allow the growth and compensation of the tissues. If one or more essential amino acids were to come missing, synthesised proteins won't be complete or rich enough for the body.
Food containing complete proteins are: eggs, milk, meat, fish and poultry.
From all these food categories, eggs are the most efficient one, containing more essential amino acids than the others. They have an energetic value higher than 100.
PROTEINS' ROLES IN YOUR BODY
Proteins' main role is to give you enough essential amino acids for your body to react to the different anabolic reactions of your organism.
The three main sources of proteins of your body are the muscles, visceral tissues and blood plasma. Proteins help for the construction of the tissues and are an important part of your metabolism and your hormonal system.