Objective: To describe the contribution of dietary supplements, fortified foods, whole foods, and nutritional yeast to vitamin B12 intake among participants of the AHS-2 calibration study. Methods: We used cross-sectional data from the AHS-2 calibration study whose participants are representative sample of the AHS-2 cohort. It included 66.7% females, 54.4% Whites, and have a wide variation of …