HUMAN NUTRITION

Detailed explanation-1: -The USDA recommends that teens get 45 to 65 percent of their daily calories from carbohydrate, 10 to 30 percent from protein and 25 to 35 percent from fat. The adult recommendation for the daily diet is 45 to 65 percent carbohydrate, 10 to 35 percent protein and 20 to 35 percent fat.

Detailed explanation-2: -For the typical healthy diet, approximately 20-30% of your total daily calories should come from protein. Your body needs protein for growth, muscle maintenance and energy. Protein is stored mostly by the muscles, with the body changing about 60% of protein into glucose.

Detailed explanation-3: -According to the Dietary Guidelines for Americans 2020-2025, adults over 19 years should get 10-35% of their total daily calorie intake from high quality protein sources. Children ages 4–18 should consume 10-30% of their total calorie intake as protein. One gram (g) of protein contains around 4 calories.

Detailed explanation-4: -The daily recommended intake of protein for healthy adults is 10% to 35% of your total calorie needs. One gram of protein supplies 4 calories. Therefore, a person on a 2000 calorie diet could eat 100 grams of protein, or 400 calories from protein, which would supply 20% of their total daily calories.