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.
Updated November 09, 2016. Many people recently diagnosed with celiac disease find they are deficient in vitamin D, a critical nutrient for both bone health and overall immune system strength.
But many people who avoid meat don't become deficient in vitamin B12. Many other foods, especially fish, contain vitamin B12. There are a couple of diseases that could cause low levels of vitamins D and B12. Celiac disease (gluten sensitivity) might cause vitamin and mineral deficiencies without specific symptoms. Crohn's disease could also cause both, but most people with Crohn's will have symptoms such as abdominal pain and frequent stools.