Potato and french fry consumption and risk of type 2 diabetes in women.

Notes: 

Nurses Study: The RR of type 2 diabetes for substituting 1 serving potatoes/d for 1 serving whole grains/d was 1.30 (substituting a whole grain for a serving of potato a day lowered by almost 30 percent)

TitlePotato and french fry consumption and risk of type 2 diabetes in women.
Publication TypeJournal Article
Year of Publication2006
AuthorsHalton TL, Willett WC, Liu S, Manson JAE, Stampfer MJ, Hu FB
JournalThe American journal of clinical nutrition
Volume83
Issue2
Pagination284-90
Date Published2006 Feb
ISSN0002-9165
KeywordsAdult, Cohort Studies, Confidence Intervals, Cooking, Diabetes Mellitus, Type 2, Dietary Carbohydrates, Female, Follow-Up Studies, Health Surveys, Humans, Middle Aged, Multivariate Analysis, Obesity, Odds Ratio, Prospective Studies, Questionnaires, Risk Factors, Solanum tuberosum
Abstract

BACKGROUND: Potatoes, a high glycemic form of carbohydrate, are hypothesized to increase insulin resistance and risk of type 2 diabetes.

OBJECTIVE: The objective was to examine prospectively the relation between potato consumption and the risk of type 2 diabetes.

DESIGN: We conducted a prospective study of 84,555 women in the Nurses' Health Study. At baseline, the women were aged 34-59 y, had no history of chronic disease, and completed a validated food-frequency questionnaire. The participants were followed for 20 y with repeated assessment of diet.

RESULTS: We documented 4496 new cases of type 2 diabetes. Potato and french fry consumption were both positively associated with risk of type 2 diabetes after adjustment for age and dietary and nondietary factors. The multivariate relative risk (RR) in a comparison between the highest and the lowest quintile of potato intake was 1.14 (95% CI: 1.02, 1.26; P for trend = 0.009). The multivariate RR in a comparison between the highest and the lowest quintile of french fry intake was 1.21 (95% CI: 1.09, 1.33; P for trend < 0.0001). The RR of type 2 diabetes was 1.18 (95% CI: 1.03, 1.35) for 1 daily serving of potatoes and 1.16 (95% CI: 1.05, 1.29) for 2 weekly servings of french fries. The RR of type 2 diabetes for substituting 1 serving potatoes/d for 1 serving whole grains/d was 1.30 (95% CI: 1.08, 1.57). The association between potato consumption and risk of type 2 diabetes was more pronounced in obese women.

CONCLUSIONS: Our findings suggest a modest positive association between the consumption of potatoes and the risk of type 2 diabetes in women. This association was more pronounced when potatoes were substituted for whole grains.

Alternate JournalAm. J. Clin. Nutr.
PubMed ID16469985
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