The amount of protein needed by each person is determined by their age,size,metabolic rate,and the need to build new proteins (whether the body is in positive nitrogen balance).

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The amount of protein needed by each person is determined by a variety of factors, including age, size, metabolic rate, and the need to build new proteins. The concept of positive nitrogen balance refers to a state in which the body is synthesizing more protein than it is breaking down, which can be an important factor for individuals who are seeking to build muscle or recover from injury. Overall, protein requirements are highly individualized and can vary widely depending on a person's specific circumstances.

The Amount of Protein Needed by Each Person Is Determined