Preventing Rickets Requires More Than Living in a Sunny Climatehttp://articles.mercola.com/sites/articles/archive/2001/06/02/rickets-part-two.aspxRickets can be caused by a deficiency of vitamin D in the diet or a lack of exposure to sunlight. Ultraviolet light triggers a reaction in the skin that helps the body synthesize its own vitamin D, which is used to help the body absorb calcium, the keyenCommunityServer 2008.5 SP1 (Build: 31106.3070)