Weight-Loss Vs. Glucose Control

Principal investigator Dr. Osama Hamdy told the audience at the ADA scientific sessions that, “We’ve been glucose-focused for a long time. We need to be weight-focused. We need to focus on the cause of the problem and not the result of the problem.” Researchers at the Joslin Diabetes Center report that a 12-week weight-loss program they devised for patients with type 2 diabetes continues to have a positive, long-lasting effect on weight loss 1 year later, long after patients are off on their own.
The findings of a 1-year follow-up of the 12-week "Why WAIT" weight-loss program were presented here this week at the 68th Annual Scientific Sessions of the American Diabetes Association by principal investigator Dr. Osama Hamdy.

The study involved 85 patients with type 2 diabetes, average age 54 years and a disease duration of approximately 10 years. The average weight was 235 pounds, average body mass index (BMI) was 38.4, average hemoglobin A1C was 7.5 percent, and average waist circumference was 46.7 inches.

Patients completed the 12-week diet and exercise program and were followed for another year without structured intervention.

Twelve weeks of the intervention resulted in an average weight loss of 24.6 pounds — more than a 10 percent reduction — a waist circumference reduction of 3.6 inches, and an average drop of 0.9 percent in A1C to 6.6 percent, indicating good control of blood sugar.

After 1 year of follow-up, weight remained lower than before the patients began the diet by more than 18 pounds — a long-term loss of 7.6 percent. However, A1C levels increased to approximately 7.4 percent.

Overall, 55 percent of participants continued to lose weight on their own, Hamdy said. The other 45 percent gained back approximately 5 pounds, but their final weight remained 2.0 percent lower than their pre-diet weight.

Blood pressure, both top and bottom readings, were significantly lower at 12 weeks and 1 year compared with pre-diet readings, he added. Cholesterol levels improved significantly at 12 weeks, but had returned to pre-diet levels at 1 year, except for HDL, the "good" cholesterol, which remained significantly higher.

Hamdy said there was evidence that kidney function improved as well, with a small decrease in protein in the urine."The clinical implications are enormous," Hamdy told the audience.”

The mainstays of the "Why WAIT?" program are a low carb diet and tailored exercise. "We use significant calorie reduction and reduce carbohydrates to 40 percent of calories and increase protein to 30 to 40 percent of calories — this is key for patients to maintain muscle," Hamdy said. "In addition, we teach patients how to exercise, especially the type and the amount, and make sure it is age-appropriate. This is very important."

He added, "The main reason that patients regain weight is that they decrease their protein intake and don’t exercise as much. The weight they gain is mostly fat, and visceral fat."

There is also an economic benefit. "Weight reduction leads to a reduction in need for medications. We saw a 65 percent-reduction in medical costs, or about $560 per year per patient — and patients feel better," Hamdy reported
Presented at the American Diabetes Association 68th Scientific Sessions held in San Francisco, California.

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FACT:
Australian Bellies Bulge Past America’s: The astonishing speed with which Australians are adding weight has enabled the country to clam an unsavory title: fattest country among the world’s major economies. Quietly but surely, more than a quarter of the Australian adult population, 26% of its 15.1 million, has become obese, compared with 25% in the United States, according to a comprehensive survey, titled "Australia’s Future Fat Bomb," by the Melbourne-based Baker IDI Heart and Diabetes Institute. That puts Australia ahead of America as the world’s fattest major country.

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