HTHSCI 3BB3 Lecture 11: Weight Management and Eating Disorders
2 Jan 2019
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Document Summary
Visceral vs subcutaneous fat: subcutaneous: fat under the skin, visceral fat: in and surrounds vital organs. Energy balance: balance between energy taken in and energy expended will determine our weight. Leptin surveils the body, asses its energy state. Leptin levels are proportional to fat levels in the body; insulin levels are thought to affect the release of leptin and work with leptin to control body fat levels. In obese individuals there is plenty of leptin but it does not seem to inhibit food intake and increase energy output as in normal weight individuals. Decreases likelihood of weight loss and negatively impacts metabolism. Tips for shifting energy balance toward weight loss. Pros and cons of some commercial weight-loss diets. Gastric bypass: this is the most common type of bariatric surgery, the size of the stomach is effectively decreased to limit intake and the length of the small intestine is shortened, which limits absorption.
