1van Dam RM & Feskens EJ (2002) Coffee consumption and risk of type 2 diabetes mellitus. Lancet 360, 1477–1478.
2van Dam RM (2006) Coffee and type 2 diabetes: from beans to β-cells. Nutr Metab Cardiovasc Dis 16, 69–77.
3van Dam RM & Hu FB (2005) Coffee consumption and risk of type 2 diabetes: a systematic review. JAMA 294, 97–104.
4Reunanen A, Heliövaara M & Aho K (2003) Coffee consumption and risk of type 2 diabetes mellitus. Lancet 361, 702–703.
5Tuomilehto J, Hu G, Bidel S, et al. (2004) Coffee consumption and risk of type 2 diabetes mellitus among middle-aged Finnish men and women. JAMA 291, 1213–1219.
6van Dam RM, Dekker JM, Nijpels G, et al. (2004) Coffee consumption and incidence of impaired fasting glucose, impaired glucose tolerance, and type 2 diabetes: the Hoorn Study. Diabetologia 47, 2152–2159.
7Rosengren A, Dotevall A, Wilhelmsen L, et al. (2004) Coffee and incidence of diabetes in Swedish women: a prospective 18-year follow-up study. J Intern Med 255, 89–95.
8Carlsson S, Hammar N, Grill V, et al. (2004) Coffee consumption and risk of type 2 diabetes in Finnish twins. Int J Epidemiol 33, 616–617.
9Astrup A, Toubro S, Cannon S, et al. (1990) Caffeine: a double-blind, placebo-controlled study of its thermogenic, metabolic, and cardiovascular effects in healthy volunteers. Am J Clin Nutr 51, 759–767.
10Dulloo AG, Geissler CA, Horton T, et al. (1989) Normal caffeine consumption: influence on thermogenesis and daily energy expenditure in lean and postobese human volunteers. Am J Clin Nutr 49, 44–50.
11Bracco D, Ferrarra JM, Arnaud MJ, et al. (1995) Effects of caffeine on energy metabolism, heart rate, and methylxanthine metabolism in lean and obese women. Am J Physiol 269, E671–E678.
12Greer F, Hudson R, Ross R, et al. (2001) Caffeine ingestion decreases glucose disposal during a hyperinsulinemic–euglycemic clamp in sedentary humans. Diabetes 50, 2349–2354.
13Graham TE, Sathasivam P, Rowland M, et al. (2001) Caffeine ingestion elevates plasma insulin response in humans during an oral glucose tolerance test. Can J Physiol Pharmacol 79, 559–565.
14Keijzers GB, De Galan BE, Tack CJ, et al. (2002) Caffeine can decrease insulin sensitivity in humans. Diabetes Care 25, 364–369.
15Iso H, Date C, Wakai K, et al. (2006) The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults. Ann Intern Med 144, 554–562.
16Isogawa A, Noda M, Takahashi Y, et al. (2003) Coffee consumption and risk of type 2 diabetes mellitus. Lancet 361, 703–704.
17Greenberg JA, Axen KV, Schnoll R, et al. (2005) Coffee, tea and diabetes: the role of weight loss and caffeine. Int J Obes 29, 1121–1129.
18Salazar-Martinez E, Willett WC, Ascherio A, et al. (2004) Coffee consumption and risk for type 2 diabetes mellitus. Ann Intern Med 140, 1–8.
19van Dam RM, Willett WC, Manson JE, et al. (2006) Coffee, caffeine, and risk of type 2 diabetes: a prospective cohort study in younger and middle-aged U.S. women. Diabetes Care 29, 398–403.
20Pereira MA, Parker ED & Folsom AR (2006) Coffee consumption and risk of type 2 diabetes mellitus: an 11-year prospective study of 28 812 postmenopausal women. Arch Intern Med 166, 1311–1316.
21Yamaji T, Mizoue T, Tabata S, et al. (2004) Coffee consumption and glucose tolerance status in middle-aged Japanese men. Diabetologia 47, 2145–2151.
22Seligson FH, Krummel DA & Apgar JL (1994) Patterns of chocolate consumption. Am J Clin Nutr 60, 1060S–1064S.
23Oba S, Shimizu N, Nagata C, et al. (2006) The relationship between the consumption of meat, fat, and coffee and the risk of colon cancer: a prospective study in Japan. Cancer Lett 244, 260–267.
24Shimizu H, Ohwaki A, Kurisu Y, et al. (1999) Validity and reproducibility of a quantitative food frequency questionnaire for a cohort study in Japan. Jpn J Clin Oncol 29, 38–44.
25Shimizu H (1996) A Basic Report on Takayama Study. Gifu, Japan: Department of Public Health, Gifu University School of Medicine.
26Suzuki I, Kawakami N & Shimizu H (1998) Reliability and validity of a questionnaire for assessment of energy expenditure and physical activity in epidemiological studies. J Epidemiol 8, 152–159.
27Shimizu H (2002) A supplementary comment on ‘Reliability and validity of a questionnaire for assessment of physical activity in epidemiological studies’ published in Journal of Epidemiology, 1998. J Epidemiol 12, 54.
28Barone JJ & Roberts HR (1996) Caffeine consumption. Food Chem Toxicol 34, 119–129.
29Brown J, Kreiger N, Darlington GA, et al. (2001) Misclassification of exposure: coffee as a surrogate for caffeine intake. Am J Epidemiol 153, 815–820.
30Willett W (1990) . In Nutritional Epidemiology, pp. 245–271 [Willett W, editor]. Oxford: Oxford University Press.
31Manach C, Scalbert A, Morand C, et al. (2004) Polyphenols: food sources and bioavailability. Am J Clin Nutr 79, 727–747.
32Svilaas A, Sakhi AK, Andersen LF, et al. (2004) Intakes of antioxidants in coffee, wine, and vegetables are correlated with plasma carotenoids in humans. J Nutr 134, 562–567.
33McCarty MF (2005) A chlorogenic acid-induced increase in GLP-1 production may mediate the impact of heavy coffee consumption on diabetes risk. Med Hypotheses 64, 848–853.
34Hosoda K, Wang MF, Liao ML, et al. (2003) Antihyperglycemic effect of oolong tea in type 2 diabetes. Diabetes Care 26, 1714–1718.
35Grassi D, Lippi C, Necozione S, et al. (2005) Short-term administration of dark chocolate is followed by a significant increase in insulin sensitivity and a decrease in blood pressure in healthy persons. Am J Clin Nutr 81, 611–614.
36Waki K, Noda M, Sasaki S, et al. (2005) Alcohol consumption and other risk factors for self-reported diabetes among middle-aged Japanese: a population-based prospective study in the JPHC study cohort I. Diabet Med 22, 323–331.