Saturday, February 05, 2011

Dietary Guidelines Call for More Exercise, Less Food


Just to look at me, you probably wouldn't notice I've lost 80 lbs. Yes, 20 lbs. in 1960, 20 lbs in 1983, 20 lbs in 1993 and 20 lbs in 2006. Same 20 lbs each time. And by the miracle of the fashion industry I weigh 10 lbs more in 2011 but am 2 dress sizes smaller. Who knew?

The new guidelines don't look all that different than the 2005 guidelines. Maybe they are pushing more exercise? Anyone can lose weight. All diets work. It's keeping it off that's the problem. But I will admit that the weight I lost in 1983 stayed off the longest, because it was through aerobics, and not by dieting. Whatever crosses the lips and tongue eventually has to be atoned for in energy use. The 20 lbs I lost in 2006, which was by eating healthier--more fruits and vegetables, and saying no to desserts, French fries, pizza, and salty snacks--began creeping back in the fall of 2007 when we went to Ireland, and were eating lots of wonderful food 3 times a day on a Illini Alumni Tour. Then the Italy Tour in 2008 pretty much restored everything I'd lost in 2006. My goodness that Italian food is good.

Some people say they just don't know why they gain weight. I know exactly why. Today, instead of 5 vegetables which I would have eaten 4 years ago for lunch when I was losing weight while eating healthier, I had a sandwich with meat and cheese, some chips, and a few pieces of dark chocolate.

Dietary Guidelines Call for More Exercise, Less Food - WSJ.com

The Oct. 27, 2010 JAMA featured several articles on obesity and testing interventions on class II and class III obesity. This study included commercial weight loss programs. It seems to be a rather successful weight loss with follow up after 2 years. Unfortunately, there was no significant effect on cardiopulmonary fitness, cholesterol levels, physical or mental quality of life, or depression. There was a reduction in C-reactive protein levels and improvement in leptin levels.

The greatest obesity problem in the U.S. is among African American women, of whom about 28% are obese, much higher than black men or white women of Hispanics. And would you believe they are pondering whether there is a biological factor?

"The degree of adiposity associated with a given level of BMI varies by age, sex, and racial and ethnic group.​ Relative to white men and women at the same BMI level, black men and women tend to have higher lean mass and lower fat mass.​ The relative, although not absolute, health risks associated with a given BMI level may be lower for blacks than for whites. Asian populations tend to have higher body fat percentages at a given BMI level and possible higher risks; however, this theory has been disputed.​ Considerable discussion has addressed the public health and policy issues of using different BMI cutoff points for different ethnic groups that have different relationships with BMI, body fat, and health risks." Katherine M. Flegal, Prevalence and Trends in Obesity Among US Adults, 1999-2008. JAMA. 2010;303(3):235-241.

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