“56 cases of rickets uncovered.” The Citizen. October 29th, 2007: “Experts said vitamin D, which is unique in being produced primarily by exposure to sunlight, was a relatively common deficiency among Asian immigrants, because of their darker skin, and Islam’s requirements for clothing to cover limbs.”
Daniel Pipes. “Burqa Crime.” The American Conservative Union Foundation. September 30, 2009: “new studies in both England and Ireland have found that covered women (and their breast-fed children) tend to get rickets disease due to an insufficiency of vitamin D, which the skin absorbs from sunlight.”