According to the United States Institute of Health the best way to get rid of body fat is a low-fat diet rather than a low-carb diet. The new study published in the journal Cell Metabolism contradicts a popular belief according to which low-carb diets are a better option if one wants to lose weight. Previously it was believed that when the intake of carbs is reduced the insulin levels are also reduced. Fat on the other hand did not reduce insulin levels.
The lead author of the study Kevin Hall from the U.S. National Institute of Diabetes and Digestive and Kidney Diseases in Bethesda proved that in a low-fat diet body fat was reduced at a higher rate than in the case of a low-carb diet. This happened irrespective of the fact that the diet had no significant impact on insulin level and the fact that the number of calories was the same.
For this study researcher used data about 19 participants who had an average body index mass of approximately 36, which means that they were obese. Ten of the participants were men and the rest of nine were women. The participants underwent both a low-fat diet and a low-carb diet. During the study they were in the laboratory where the researchers closely monitored their diet.
In the first five days of both diets the participants had a baseline menu consisting of 15 percent protein, 35 percent fat and 50 percent carbs. In the following six days the researchers cut either 30 percent of the carb intake or 30 percent of the fat intake.
The findings of the research indicate that while the low-carb diet led to a loss of only 53 grams per day the low-fat diet led to a loss of 89 grams daily.
Dietician and assistant professor Lona Sandon from the University of Texas Southwestern Medical Center at Dallas agreed that the study’s conclusion is that the total number of calories is what influences fat loss. She remarked:
Reducing calories, no matter the source, whether carbs or fats, is most important for weight loss overall. If you decrease fat to create a calorie deficit, the body will use stored carbs for energy until those stores are used. Then it will take from fat stores. If you reduce carbs for a calorie deficit, the body will use up the stored carb energy and then tap into fat sources.”
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