Part 2. 1  1. Fill out a Petition for Legal Separation. This form, numbered FL-100, tells the court why you want a legal separation and briefly identifies the issues the court will need to address, including child custody, child and spousal support, and property division. 2  2. Fill out a Summons.
Arthritis of the bones and joints can also be caused by vitamin D deficiency. In addition, young children who have a deficiency of vitamin D can suffer from rickets, which is a disease that causes softening of the bones.
Quick Answer. Avoiding direct sunlight and eating a diet containing insufficient amounts of vitamin D can lead to vitamin D deficiency, according to WebMD. Illnesses that damage the ability of the intestine to absorb vitamin D, such as celiac disease, cystic fibrosis and Crohn's disease, can also lead to vitamin D deficiency. Because fat cells extract vitamin D from the blood, people who are obese often have a vitamin D deficiency.