CHE-126 Lecture Notes - Lecture 15: Underweight, Monounsaturated Fat, Trans Fat
Document Summary
Usda estimates a daily caloric consumption of mod active young male (2800); female (2000) Differs depending on sex, weight, height, age, and level of activity. 20-35% fat includes most polyunsaturated & monounsaturated fatty acids. Based on law of conservation of energy . Obesity: refers to excess amount of body fat. Overweight: refers to excess amount of body weight that may come from muscles, bone, fat, water. Approx 1. 7% us adults (20+) are underweight. Most prevalent in southern asia and many part of africa. 1 lb of fat tissue = 3500 kcal of energy. Diets<1200 kcal/day are not recommended lack of necessary nutrients (carbs, fats, proteins, vitamins, minerals) Gain back weight when you resume your old eating habits. Measured by the amount of body fat (or persons density) % body fat can be measured by a person"s density (mass/volume) fat is less dense (0. 903 g/ml) than water (1. 00g/ml) More body fat = lower density, more buoyancy in water.
