The consumption of lycopene and tomato-based food products is not associated with the risk of type 2 diabetes in women.
Lycopene is a major carotenoid with potent antioxidant properties that may provide protection against the development of type 2 diabetes mellitus (DM). In this study we examined the association between baseline dietary intakes of lycopene, lycopene-containing foods, and the subsequent development of type 2 DM in a large prospective cohort study. We analyzed a total of 35,783 women from the United States, aged > or =45 y and free from self-reported cardiovascular disease, cancer, and DM at baseline. Intakes of lycopene and total and individual tomato-based food products were assessed by a 131-item-validated semiquantitative food-frequency questionnaire. During a median follow-up of 10.2 y, 1544 cases of incident type 2 DM were documented. After adjusting for age, total energy intake, randomized treatment assignment, body mass index, and other known DM risk factors, the multivariate-adjusted relative risks and 95% CI of type 2 DM across increasing quintiles of dietary lycopene, were 1.00 (baseline), 1.10 (0.94-1.29), 1.10 (0.94-1.29), and 1.07 (0.91-1.26) (P linear trend = 0.56). Compared with women who consumed <1.5 servings/wk total tomato-based food products, women who consumed 1.5 to <4, 4 to <7, 7 to <10, and > or =10 servings/wk had multivariate relative risks (95% CI) of 1.03 (0.88-1.20), 1.02 (0.87-1.20), 1.09 (0.89-1.33), and 1.04 (0.80-1.36), respectively (P linear trend = 0.54). The associations for individual tomato-based food products were similar to the results for the combination of all tomato products. Our study found little evidence for an association between dietary intake of lycopene or lycopene-containing foods and the risk of type 2 DM.
Wang
Lu
L
Division of Aging, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA. luwang@rics.bwh.harvard.edu
Liu
Simin
S
Manson
Joann E
JE
Gaziano
J Michael
JM
Buring
Julie E
JE
Sesso
Howard D
HD
D000975:Antioxidants / Q000008:administration & dosage / Q000494:pharmacology*; D001900:Boston / Q000453:epidemiology; D002338:Carotenoids / Q000008:administration & dosage / Q000494:pharmacology*; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D000077276:Lycopene; D018551:Solanum lycopersicum; D008875:Middle Aged; D012306:Risk; D012307:Risk Factors
D000975:Antioxidants; D002338:Carotenoids; D000077276:Lycopene