Individual participant data (IPD)-level meta-analysis of randomised controlled trials to estimate the vitamin D dietary requirements in dark-skinned individuals resident at high latitude

Kevin D. Cashman, Máiréad Kiely, Rikke Andersen, Ida M. Grønborg, Inge Tetens, Laura Tripkovic, S. A. Lanham‐New, Christel Lamberg‐Allardt, Folasade A. Adebayo, John C. Gallagher, Lynette M. Smith, Jennifer M. Sacheck, Qiushi Huang, Kimmie Ng, Chen Yuan, Edward L. Giovannucci, Kumaravel Rajakumar, Charity G. Patterson, Inger Öhlund, Torbjörn Lind, Pia Karlsland Åkeson, Christian Ritz