Which of the following statements about protein intake is a myth?

The notion that excess protein can strain organs is often considered a myth when discussing healthy individuals with normal kidney function. While it is true that individuals with pre-existing kidney disease need to monitor their protein intake closely, research has not substantiated the claim that excessive protein negatively affects the kidneys in healthy people. In fact, higher protein diets can be beneficial for muscle synthesis and fat loss, provided the dietary needs and energy balance are maintained.

The other statements identify facts about protein intake: high protein intake can indeed support muscle gain by providing the necessary building blocks for muscle recovery and growth; some plant proteins may not provide all essential amino acids (making them incomplete proteins), which is crucial for those relying on plant sources for their protein needs; and protein is essential for many bodily functions, including the production of hormones. These aspects of protein usage in the body emphasize its critical role in health and fitness, contrasting the perspective around excess protein and organ strain in healthy individuals.