caloric amount in each macro nutrient
A healthy diet consists of the right combination of the three macronutrients, carbohydrates, protein and fat. The amount of each macronutrient you need per day is determined by your calorie intake. Fat provides 9 calories per gram, while carbohydrates and protein each contain 4 calories per gram.eneralized calorie estimates are based on age, gender and activity level. According to the Dietary Guidelines for Americans 2010, women usually require 1,600 to 2,400 calories, while men often need 2,000 to 3,000 calories each day to maintain a healthy body weight.