The varieties of language you use in different areas of your life are known as speaking or writing styles. Some particularly specialized styles, such as those used in the courtroom, or poetry, or the operating room, are known as registers.
The United States National Institutes of Health recommends testing vitamin A levels in people with celiac disease at diagnosis. This is because vitamin A deficiency is common in celiac disease. Deficiency can result from incomplete digestion, absorption, or metabolism. Normal absorption of vitamin A first requires digestion, or releasing, from food protein in the stomach.
A life-long, gluten-free diet is the only treatment for celiac disease. Fortunately, it is very effective. Symptoms usually go away within days of starting the diet. Healing of the villi may take months or years. Additional intake of gluten can damage the intestine, even if you have no symptoms.