One of the major causes of Vitamin D deceicinfy is insufficient exposure to sunlight. For this reason, people with indoor lifestyles as well as people living in regions with less sunlight are more likely to have lowered vitamin D levels. Certain health conditions and medications may also inhibit absorption or increase metabolism of the vitamin.Your mom can raise her vitamin D level by spending at least 20-30 minutes in the sun every day or taking pill supplements. Depending on the specific cause of her deceicinfy, the strength of the supplement will vary:-Inadequate sun exposure: 50,000 IU per week for 8 weeks-Malabsorption caused by health conditions: 50,000 IU every day or every other day-Medications that increase vitamin D metabolism: 50,000 IU every 2 weeks for 8-10 weeksFoods rich in vitamin D, such as pickled herring, canned boned salmon, and mackerel, will also help.While red meat does combat iron deceicinfy, other dietary staples such as bread and other starches inhibit the absorption of iron. Additionally, excessive blood loss and certain chronic diseases may also lead to lowered iron levels. During their childbearing years, women lose twice as much iron as men from menstruation and pregnancy. Consultation with a doctor will help your mom to uncover the particular cause of her iron deceicinfy. In the meantime, meat and ferrous sulfate supplements will increase the iron in her system.