essential amino acid index的意思|示意

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Essential amino acid index (EAAI) is a measure that helps to define the quality of a protein source. It is based on the ratio of essential amino acids to non-essential amino acids in the protein source. Essential amino acids are essential because they cannot be manufactured by the body and must be provided in the diet.

The EAAI is calculated as the sum of the essential amino acids (EAAs) divided by the total amount of amino acids in the food source. The higher the ratio of EAAs to the total amino acids, the better the source of protein is considered to be. So, foods with higher EAAIs are considered to be more complete sources of protein and have a greater potential to support growth, muscle building, and recovery.

The EAAI can be used as a predictor of how much protein a person needs to consume in order to meet their needs. For instance, if a person needs 1.0 grams of protein per kilogram of body weight per day, then the EAAI can be used to determine how much of a particular food or food group would be needed to meet their needs. For example, if a person needs 1.0 grams of protein per kilogram of their body weight, then they would need approximately 8.4g of a food with a EAAI of 0.8.

In summary, the EAAI is a measure of the quality of a protein source and can be used to plan an appropriate protein intake. Foods with a higher EAAI are considered to be more complete sources of protein and can better support growth, muscle building, and recovery.