You may already know that our bodies make vitamin D upon skin exposure to the sun (ultraviolet-B rays from the sunlight on our skin allows our body to make Vitamin D). However, research indicates that the majority of us are not exposed enough to sunlight to make enough Vitamin D. Factors other than low exposure to the sun that impede the amount of Vitamin D we make are darker skin color, northern latitude, and older age. Research has also shown a link between low levels of Vitamin D and cancer. More recent research by Adrian Gombart, Ph.D., is indicating Vitamin D supplementation may boost the immune system to help our bodies naturally defend against MRSA (a bacteria that is resistant to antibiotics and an increased health concern). Research on Vitamin D Hopefully we will find more answers regarding the amount of Vitamin D supplementation needed to combat our illnesses.
In the meantime, exposing the face and hands to about 10 minutes of sunlight a day is recommended produce enough vitamin D in the body. Food sources of vitamin D include vitamin D fortified foods (milk, some orange juices and cereals), cheese, eggs, salmon, tuna, and sardines.
According to the National Institutes of Health (NIH), the daily Adequate Intake of Vitamin D for adults under 50 years old is 200 IU day, 50-70 years old 400 IU day, and those over 70 should get 600 IU/day. Some researchers are suggesting supplementing with 2,000 IU day. Translation: If you aren’t out in the sun daily, or eating Vitamin D containing foods, you may want to consider a supplement. Your physician can test your vitamin D levels to see if it is low…if you decide to take a supplement, look for D3 (cholecalciferol) rather than D2 (ergocalciferol), and prior to taking supplements, always discuss with your physician.