c'est quoi, un GI ???

SPECIAL DEDICACE A TIT'

Traditional treatment of high cholesterol aims to reduce the person's risk of coronary artery disease and heart attack, and could include: dietary changes - recommended dietary changes include reduced intake of saturated fats and cholesterol-rich foods, and increased intake of fibre. Modifying the diet is usually the first line of treatment. After three months, test results will show whether more aggressive treatment is needed.
Dr. Arthur Agatston, an established cardiologist, created The South Beach Diet™ in the mid-1990s in response to his disillusionment with the low-fat, high-carbohydrate diet that the American Heart Association recommended. Dr. Agatston believed that the low-fat regimens of that era did not seem to work reliably, especially over the long haul.
A recent weight-loss study published in the Archives of Internal Medicine indicated that people who followed The South Beach Diet™ lost nearly twice as much weight — around 13.5 pounds total — compared to those who followed a National Cholesterol Education Program (NCEP) low-fat diet.
"It started out simply enough. Arthur Agatston, MD, a cardiologist, decided to develop an eating plan that would improve the cholesterol and insulin levels of his patients with heart disease. Now, the South Beach Diet has grown into something much bigger. That's because the plan Agatston created no only improves cholesterol and insulin levels, but it also has helped many people lose weight." — MSN Health
New study : Summarized by Robert W. Griffith, MD June 30, 2005
Thirty-four volunteers aged between 18 and 35, with a body mass index (BMI) over 27 but body weight below 300 lbs (or 136 kg), were enrolled. There were 30 women and 4 men.They were randomly allocated to take a low glycemic index diet or a low-fat diet, with 6 months of monthly 1-hour dietary counseling sessions, and then 6 months of less intense follow-up (just 2 counseling sessions in all).The recommended low glycemic index diet comprised non-starchy vegetables, fruit, peas, beans, nuts, and dairy products. The participants in this group "were to eat carbohydrate with protein and healthful fat at every meal and snack, and to eat to satiety and snack when hungry". A low glycemic index diet pyramid was provided, yielding, if followed, 45-50% of energy from carbohydrate, 30-35% of energy from fat, and the remainder from protein.The conventional low-fat diet was based on the American Diabetes Association's diabetes food pyramid, yielding 55-60% of energy from carbohydrate, less than 30% energy from fat, and the remainder from protein. Weight, height, blood pressure, blood lipids, blood glucose, serum insulin, and plasminogen activator inhibitor (PAI-1)1 were measured at baseline, 6 and 12 months.
What was found
Of the 34 original enrollees, 11 dropped out during the year - there was one pregnancy, two illnesses, and 8 who discontinued without explanation. Eleven people following the low glycemic index diet and 12 following the low-fat diet completed the 1-year study.Body weight decreased significantly in both the groups; by 6 months, the low glycemic index diet group had lost 8.4% of their starting weight, and the low-fat diet group had lost 7.8%. After one year, these values were -7.8% and -6.1%, respectively.Blood triglyceride levels decreased by 37% in the low glycemic index group compared with 19% in the low-fat group. And PAI-1 levels decreased by 39% in the low glycemic index group, but increased by 33% in the low-fat group. Insulin sensitivity increased significantly in both groups.While both approaches to dieting had similar beneficial effects on body weight, the low glycemic index diet had a more favorable effect on triglyceride and PAI-1 levels. Both of these blood substances are directly linked with increased risk of a cardiovascular event (e.g. heart attack, stroke, or severe angina).
pour en savoir plus, www.southbeachdiet.com
ou encore www.becomehealthynow.com
ou même www.weightlossresources.co.uk
et pour ceux qu'avaient pô comprrris, GI = Glycemic Index.