What are some consequences of protein deficiency?

Protein deficiency can have several significant consequences on the body, primarily due to the role proteins play in various biological processes. Muscle wasting occurs because proteins are crucial for maintaining and building muscle mass. When there is a deficiency, the body may break down muscle tissue to obtain the necessary amino acids for vital functions, leading to a reduction in muscle mass.

Weakened immunity is another critical consequence since proteins are essential for the formation of antibodies and other immune system components. A lack of sufficient protein can impair the body's ability to respond to infections and illnesses effectively.

Additionally, digestive issues can arise because proteins are involved in the production of enzymes that aid digestion. Insufficient protein can disrupt normal digestive processes, leading to various gastrointestinal problems.

In contrast, the other choices suggest positive outcomes related to protein deficiency, which do not align with the established understanding of the role of protein in health. This highlights the negative impacts that can arise from not having enough protein in the diet.