Vitamin treatment is important during specific diseases where the body's normal processing of a vitamin is impaired.
Low vitamin D levels can be caused by several factors, including insufficient sun exposure, which is essential for the body's natural synthesis of the vitamin. Other contributing factors include a diet low in vitamin D-rich foods, certain medical conditions that affect absorption (like celiac disease or Crohn's disease), and obesity, which can sequester vitamin D in fat tissue. Additionally, older adults and individuals with darker skin may have reduced synthesis of vitamin D due to lower UVB absorption.
Pernicious anemia
Most of the vitamins are closely associated with a corresponding vitamin deficiency disease.
Smoking can decrease the absorption of vitamin C in the body. This is because smoking can damage the cells in the digestive system that are responsible for absorbing nutrients, including vitamin C. As a result, smokers may have lower levels of vitamin C in their bodies compared to non-smokers.
vitamin A
The vitamin B12 is a very important nutrient; it lowers risk of stroke, heart disease, cancer, Parkinson's, and Alzheimer's disease. The vitamin begins to absorb in the mouth, in contrast to most nutrients.
Animal studies have concluded that vitamin C enhances chromium absorption of insulin.
Stimulants like caffeine can decrease the absorption of vitamin C in the body, leading to lower effectiveness of the vitamin.
Vitamin A increases the absorption of magnesium.
Vitamin K supplements are primarily used to support normal blood clotting. They are also important for bone health and may help reduce the risk of fractures. Some people may need to take vitamin K supplements if they have certain medical conditions that affect vitamin K absorption or if they are taking medications that interfere with vitamin K metabolism.
Osteomalacia is a disease characterized by softening of the bones due to a lack of vitamin D, calcium, or phosphorus in the diet or issues with their absorption. This can lead to bone pain, fractures, and deformities. Treatment often involves vitamin D and mineral supplementation.
Examples of such diseases are celiac disease (chronic nutritional disorder), cystic fibrosis, and cholestasis (bile-flow failure or interference).