This study is an oldie but goodie.
Here is the citation.
Hollis BW. Wagner CL, Howard CR, et al. Maternal Versus Infant Vitamin D Supplementation During Lactation: A Randomized Controlled Trial. Pediatrics. 2015;136(4): 625-634.
Here is the PubMed link. This is an open access article.
Here is what I think.
This study is 7 years old but still remai…