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Low Carb Diets Are
Beneficial in Reducing Visceral Fat in Type 2
posted September 8, 2004
A1c’s, HDL’s and insulin sensitivity
improved as visceral fat was reduced.
The purpose of the study was to investigate the effects of low carbohydrate diet
on glucose and lipid metabolism, especially on visceral fat accumulation, and
comparing that of a high carbohydrate diet. Obese subjects with type 2 diabetes
mellitus were randomly assigned to take a low calorie and low carbohydrate diet
(n=11, 1000 kcal per day, protein:carbohydrate:fat=25:40:35) or a low calorie
and high carbohydrate diet (n=11, 1000 kcal per day, protein:carbohydrate:fat=25:65:10)
for 4 weeks.
Similar decreases in body weight and serum glucose levels were observed in both
groups. Fasting serum insulin levels were reduced in the low carbohydrate diet
group compared to the high carbohydrate diet group (-30% versus -10%, P<0.05).
Total serum cholesterol and triglyceride levels decreased in both groups, but
were not significantly different from each other. High-density
lipoprotein–cholesterol (HDL–C) increased in the low carbohydrate diet group but
not in the high carbohydrate diet group (+15% versus 0%, P<0.01). There was a
larger decrease in visceral fat area measured by computed tomography in the low
carbohydrate diet group compared to the high carbohydrate diet group (-40 cm2
versus -10 cm2, P<0.05). The ratio of visceral fat area to subcutaneous fat area
did not change in the high carbohydrate diet group (from 0.70 to 0.68), but it
decreased significantly in the low carbohydrate diet group (from 0.69 to 0.47,
P<0.05).
These results suggest that, when restrict diet was made isocaloric, a low
calorie/low carbohydrate diet might be more effective treatment for a reduction
of visceral fat, improved insulin sensitivity and increased in HDL–C levels than
low calorie/high carbohydrate diet in obese subjects with type 2 diabetes
mellitus.
Source: Diabetes In Control.com: Diabetes Research and Clinical Practice, Vol 65, Issue 3, Sept 2004 pg: 235-241.
September 2004 News Article Index
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