coffee bean extract for 6 weeks, then a lower dosage of 700mg for another 6 weeks and finally a placebo for 6 weeks Between each 6-week phase there was a 2-week “washout” period during which the participants took no supplements Results showed that they lost an average of 17.5lbs in 22 weeks, reducing their overall body weight by 10.5% No diet was involved in the study – participants’ average intake was about 2,400 calories a day; they burned about 400 calories daily in exercise and lost slightly more weight when taking the highest dose of green coffee bean extract The study was done in India and was sponsored by the manufacturer of the product used Chlorogenic acid – only evidence is this small-scale study o Garcina combogia – fruit rich in Hydroxycitric acid
Can interfere with enzymes that are involved in metabolism so that carbs don’t get as easily converted into fat o Ephedrine has worked to reduce weight, but cannot be used because it causes cardiac complications Video 4 Low-carb diet – slowed mentally and physically, constipated, lost muscle Low-fat diet – more alert, more energy o Lost roughly same amount of weight on both Atkins’ diet – ketogenic diet (low carb diet) – when you don’t burn carbohydrates as fuel, you burn fats, and that produces ketone bodies (acetone) o Lead to weight loss o High in protein and fat o Issues in eating a lot of red meat High carbohydrate diet – cutting down on proteins and fats and eating lots of starchy materials (hopefully with fiber) o Dr. Dean Ornish – cutting down on fats to less than 7% of daily caloric intake o “Meatless, cheese less, eggless salads” When comparing Atkins, Ornish, Zone, and LEARN diets, weight loss was greatest in the Atkins group o HDL, triglycerides, and blood pressure favored the Atkins group Zone diet – maintain an ideal ration of protein to carbohydrates in each meal without calorie counting o Carbs – 40% o Protein – 30% o Fat – 30% Duke University study – 60 people on Atkins, 60 on AHA diet (low-fat diet) o More weight loss under Atkins even though calorie intake was same o LDL was roughly the same for both (stayed the same) o Triglycerides went down on Atkins and up on AHA o HDL went up on Atkins and stayed the same on AHA Carbohydrates break down to simple sugars, mostly glucose o Glucose triggers insulin release o Insulin allows glucose to be absorbed through receptors by muscle cells and be used for energy o With too much insulin in the blood, receptors are overwhelmed and become “resistant” o Glucose is absorbed into fat cells and is converted to fat o In the absence of glucose in the blood, stored fat is used to produce energy and weight loss occurs Also promoting ketosis Problems in Atkins diet – deficient in fruits and fiber; puts burden on kidneys
South Beach diet – reduces “bad” carbs like baked potatoes and bananas o Modified version of Atkins diet o No need to count calories o
You've reached the end of your free preview.
Want to read all 15 pages?