Final answer:
Protein deficiencies can lead to hair, face, skin, and musculoskeletal issues. Lack of protein in the diet can result in hair loss, slowed or halted growth, skeletal muscle wasting, and anemia.
Step-by-step explanation:
Protein, Energy Deficiencies can lead to hair, face, skin, and musculoskeletal issues. Lack of protein in the diet can result in hair loss due to the body conserving protein for critical use. Protein-calorie malnutrition occurs when there is an insufficient supply of dietary proteins, leading to slowed or halted growth. Protein-energy malnutrition is often coupled with insufficient energy intake and can result in skeletal muscle wasting and anemia. Overall, protein deficiencies can have a significant impact on various body functions.