Compared to participants who ate 1 oz of chocolate less often than monthly, those who ate it 1–4 times/month, 2–6 times/week and ≥1 time/day had relative risks of being diagnosed with diabetes that were lower by 13% (95% confidence interval: −2%, 25%), 34% (18%, 47%) and 18% (−10%, 38%). These relative risks applied to participants without evidence of preexisting serious chronic disease that included diabetes, heart attacks, stroke or cancer. In conclusion, the risk of diabetes decreased as the frequency of chocolate intake increased, up to 2–6 servings (1 oz) per week. Consuming ≥1 serving per day did not yield significantly lower relative risk.