Neal Barnard, MD, President of the Physicians Committee for Responsible Medicine (PCRM), explained in an Apr. 4, 2001 news release titled "Cow's Milk a Risky Approach to Rickets, Advise Doctors and Dietitians," available on the PCRM website:

“Milk is the least healthy source of vitamin D. Rather, we should encourage increased outdoor activity, which would not only help children produce enough vitamin D naturally, but would help strengthen their bones, improve fitness, and reduce obesity. For kids who do not get enough sunlight, any typical multivitamin will do the job.”

Apr. 2, 2001