Questions: Question 15 (1 point) The protein leverage hypothesis suggests that humans have evolved to have a fixed daily dietary protein target that must be reached to optimize physiologic functioning proteins make a better energy source for the human body than carbohydrates or lipids proteins must be consumed in order to properly absorb and digest other nutrients eating too much protein causes humans to overeat

The answer is the first one: humans have evolved to have a fixed daily dietary protein target that must be reached to optimize physiologic functioning.

Explanation for each option:

1. Humans have evolved to have a fixed daily dietary protein target that must be reached to optimize physiologic functioning: This is the correct interpretation of the protein leverage hypothesis. It suggests that humans prioritize protein intake and will continue to consume food until their protein needs are met, which can lead to overeating if the diet is low in protein.

2. Proteins make a better energy source for the human body than carbohydrates or lipids: This is incorrect. While proteins can be used as an energy source, carbohydrates and lipids are generally more efficient sources of energy for the body. Proteins are primarily used for building and repairing tissues.

3. Proteins must be consumed in order to properly absorb and digest other nutrients: This is not a central claim of the protein leverage hypothesis. While proteins are important for various bodily functions, they are not specifically required for the absorption and digestion of other nutrients.

4. Eating too much protein causes humans to overeat: This is incorrect. The hypothesis suggests that insufficient protein intake can lead to overeating of other macronutrients, not that excessive protein intake causes overeating.

In summary, the protein leverage hypothesis focuses on the idea that humans have a specific protein intake target that influences overall food consumption.