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Low-carb diets do not increase the risk of type 2 diabetes; higher vegetable fat protects against it
Tuesday, February 12, 2008 2:37 pm Email this article
Low-carb diets do not increase the risk of diabetes, even in those eating diets high in animal protein and animal fat, according to a new study from researchers at Harvard School of Public Health and the Harvard Medical School in Boston, Massachusetts, USA and from the UCLA School of Public Health, at the University of California, Los Angeles in Los Angeles, California, USA.
There was no difference in the risk of type 2 diabetes during 20-years of follow-up in the one-tenth of women with the lowest carbohydrate intake and the one-tenth with the highest, even among those who consumed the most animal protein and animal fat.Diabetes Risk
Diabetes risk 18% lower in those who consumed the least carbohydrates, most vegetable protein and vegetable fat
However, the risk of type 2 diabetes was 18 percent lower among the one-tenth of women who consumed the least carbohydrates, the most vegetable protein and the most vegetable fat compared to the one-tenth of women who consumed the most carbohydrates, least vegetable protein and least vegetable fat.
Lowest Diabetes Risk
Diabetes risk 26% lower in those who consumed the most vegetable fat
The risk of type 2 diabetes was 24 percent lower among the one-tenth of women who consumed the most vegetable fat compared to the one-tenth of women who consumed the least.
Diabetes Risk Not Associated with Other Fat or Protein
Diabetes risk not associated with total fat, animal fat, animal protein or vegetable protein
“Total fat, animal fat, total protein, vegetable protein, and animal protein intakes were not associated with risk of type 2 diabetes,” the researchers noted.
“Generally, no association has been found between saturated fat or monounsaturated fat and risk of type 2 diabetes… Therefore, the increase in total fat common in low-carbohydrate diets would not be expected to increase the risk of type 2 diabetes.”
Subjects : 85,059 women
The study analyzed data from 85,059 women in the Nurses’ Health Study during an average of 20-years of follow-up.
Halton T, Liu S, Manson J, Hu FB. Low-carbohydrate-diet score and risk of type 2 diabetes in women. Am J Clin Nutr. 2008 Feb, 87(2):339-46.
AUTHOR’S CONTACT INFORMATION
Departments of Nutrition and the Division of Preventive Medicine, Department of Medicine, Harvard Medical School and Brigham and Women’s Hospital, Boston, MA.
Frank B. Hu
Department of Nutrition
Harvard School of Public Health
665 Huntington Avenue
Boston, MA 02215 USA
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