Health Sciences 1001A/B Chapter Notes - Chapter 5: Trans Fat, Essential Amino Acid, Dietary Fiber
Document Summary
An area in which you have high control. Provides body with nutrients required to produce energy, repair damaged tissue, promote tissue growth, regulate physiological processes. Choosing a healthy diet involves: knowing which nutrients are necessary and in which amounts, translating those requirements into a diet consisting of foods you like and that are available / affordable. Body requires proteins, fats, carbohydrates, minerals and water (essential nutrients) Essential = must get substances from food because body is unable to manufacture them (or not enough to meet physiological needs) Energy in food expressed in kilocalories = scientific expression of energy value in a food. Three classes of essential nutrients supply energy: fat = 9 calories per gram, protein = 4 calories per gram, carbohydrates = 4 calories per gram. If all types of calories > energy expenditure = converted to fat and stored in the body. Promotes growth and maintenance of body tissue. Primary component of muscles and connective tissue.