HUMAN NUTRITION

Detailed explanation-1: -In general, as you think about the amount of calories in a food per serving, remember that for a 2, 000-calorie diet: 40 calories per serving is considered low; 100 calories per serving is considered moderate; and 400 calories or more per serving is considered high.

Detailed explanation-2: -According to dietary guidelines in the United States, adults 21 years old and older should consume anywhere between 1, 600 and 3, 000 calories per day.

Detailed explanation-3: -(To maintain a calorie deficit of 40 percent, you’ll eat 60 percent of your TDEE per day). For example, if you find your TDEE is around 3, 000 calories per day, here’s how the math would look: 3, 000 x 0.6 = 1, 800. Thus, you’d want to eat around 1, 800 calories per day.

Detailed explanation-4: -When you’re on a low-calorie diet, you usually get between 800 and 1, 500 calories a day. For some people, an alternative for short-term weight loss is a very low-calorie diet. Many very low-calorie diets are commercially-made formulas of 800 calories or fewer that replace all the food you usually eat.

Detailed explanation-5: -For example, a 40-year-old, 180-pound (81.6-kg), 6-foot (183-cm) tall man has a BMR of 1, 767. This means that, at rest, he’ll burn approximately 1, 769 calories in a day (Equation: (9.99 × 81.6 kg) + (6.25 × 183) – (4.92 × 40) + 5 = 1, 767).