Despite this impressive list, certain studies have shown that as many as nearly half of adults and children have less than optimum levels of Vitamin D. Dietary sources of Vitamin D include fatty fish species such as catfish, salmon, mackerel, sardines and tuna, Fish Liver Oils such as Cod Liver Oil, beef liver and whole eggs. Check out this article for a guide on how much sunlight is optimum for obtaining adequate Vitamin D levels.

If you live in a northern state and don't get enough sunlight year round or do not include enough of the foods mentioned above Vitamin D Supplements can be an effective way to reach your bodies optimum level of Vitamin D. It is important for us to note that none of the claims above have been approved by the FDA and that every individual is different. It is wise to consult your physician before consuming any nutritional supplements.