https://www.jandonline.org/article/S2212-2672%2814%2901468-3/fulltext https://www.jandonline.org/article/S2212-2672%2814%2901468-3... "The mean peak (12-hour)

https://www.jandonline.org/article/S2212-2672%2814%2901468-3/fulltext https://www.jandonline.org/article/S2212-2672%2814%2901468-3... "The mean peak (12-hour) plasma vitamin D-3 level after the dose was 32% (95% CI 11% to 52%) greater in subjects consuming fat-containing compared with fat-free meals (P=0.003)."