Final answer:
Inadequate protein intake leads to reduced muscle mass, decreased metabolism, weakened immune function, hair loss, osteoporosis, mood disturbances, and digestive issues. Ensuring enough protein in the diet is necessary for maintaining healthy body functioning.
Step-by-step explanation:
The consequences of inadequate protein intake include reduced muscle mass and weakness, which occur due to the body's inability to maintain or build muscle tissue. Lack of protein can also lead to a decrease in basal metabolic rate because muscle tissue plays a role in keeping metabolism active. Another serious consequence is impaired immune function, as proteins are crucial for the immune system's ability to fight off pathogens. Furthermore, protein deficiency can contribute to hair loss and the development of osteoporosis, as bones require adequate protein for maintenance and strength.
Individuals with inadequate protein intake may also experience mood disturbances, chronic diarrhea due to decreased enzyme synthesis, and water retention and edema linked to the lack of plasma albumin synthesis. Severe protein deficiency, known as protein calorie malnutrition or protein energy malnutrition, can lead to stunted growth and a variety of health issues. It is essential to maintain an adequate protein intake to ensure the optimal functioning of the body's systems.