A study has linked vitamin D deficiency with an increased risk for cancer and autoimmune diseases, like Rheumatoid Arthritis, Lupus, and MS...Around 70 percent of adults and children in the United States are vitamin D deficient. The cause of deficiency is a combination of a diet low in vitamin D and not enough sun exposure.

It is usually recommended that a person supplement by adding 1-2,000 IU of vitamin D per day or increase your level of vitamin D through food.  Foods that help with providing vitamin D are:
1. Salmon
2. Mackerel
3. Tuna
4. Egg yolks
5. Mushrooms
6. You could choose a cereal and milk fortified with vitamin D.

So take your Vitamin D each day