Fat loss • Fat mass = 70 X 0.33 = 23.1 kg • Fat free mass = 70.0 – 23.1 = 46.9 kg • Target wt = FFM / (1.0 - Desired Fat) • Target weight = 46.9 / 0.75 = 62.5 kg • Weight (fat) loss = 70.0 – 62.5 = 7.5 kg Childhood Obesity • Obese children consume more calories eat faster are less physically active watch more TV • Greater risk for chronic diseases later in life High-Protein Diets Atkins Diet • Dr. Atkins claimed that most overweight people are CHO-sensitive. Cell receptors for insulin don’t work properly. Result is CHO converted into fat • Low CHO diet – drastically reduces whole grains, fruits, sugars, and many dairy products. • Permits high fat & protein foods (e.g., meat, eggs, & cheese) • Does not count calories. 4 stages Induction – CHO limited to 20 g/day, creates ketosis, stage lasts 14 days Ongoing weight loss – 2 weeks to 2 months, Add 5 g of CHO per day until you stop losing weight. Pre-maintenance – about 10 pounds from your desired weight. Maintenance – 40 to 60 g CHO/day The Zone – Barry Sears
• Best described as a high-protein diet • CHO – 40% • Protein – 30% • Fat – 30% (mostly monounsaturated) • Sears claims that the diet mimics the diet of our hunting & gathering ancestors • Three meals (500 Cal) & 2 snacks (100 Cal) per day = 1700 Cal/day • Eat every 5 hours • Protein/CHO ratio = 0.75 at each meal • Emphasis on low-fat animal protein • Emphasis on high fiber CHO • Long list of “bad ” CHO – carrots, corn, peas, potatoes, bananas, most grains, breads, ice cream, sugar. • Recommends aerobic exercise Accepting a Healthy Weight (Table 9-7) • Avoid frequent checking of your weight or appearance • Accept that there is no magic diet • Adopt a healthy eating lifestyle follow the guidelines from the Canada’s Food Guide & MyPyramid/Dietary Guidelines for Americans • Be physically active - Exercise regularly Body Image • The image or impression the individual has of his or her body • A poor body image may lead to personality problems and/or eating disorders Body Image Women overestimate the size of their body hips by 16% and their waist by 25%. Glamour magazine survey 61% of women were ashamed of their hips, 64% were ashamed of their abdominal area and 72% were ashamed of their thighs. 30% of women chose an ideal body shape that is 20% underweight and an additional 44% chose an ideal body shape 10% underweight. Eating Disorders • The pressure to be thin is so pervasive in our society that it is difficult to differentiate normal from abnormal eating behavior • Dieting can lead to more severe forms of disordered eating. • A psychological disorder centering on the avoidance, excessive consumption, or purging of food, such as anorexia nervosa and bulimia nervosa • The persistent concern with body shape or weight
• Occurs mainly in developed nations Anorexia A search for thinness almost always is the first step in the development of an eating disorder Anorexia Nervosa
You've reached the end of your free preview.
Want to read all 50 pages?
- Winter '07
- Vitamin, Dietary Reference Intake, iron deficiency