It is becoming more and more evident that Vitamin D is a much needed and under-consumed nutrient. A recent study showed that 70% of American children had insufficient levels when tested. It is assumed that this is because children aren't playing outside as much as they used to. (Sunshine is our main source of the vitamin)
Vitamin D aids in the absorption of calcium. That is why severely deficient diets in the vitamin will cause rickets. (soft bones)
Multiple Sclerosis has been linked to a deficiency in it as well, and it is well known that the occurrence of MS in the United States is highest in the Pacific Northwest. (where it is often cloudy!)
New research has doctors recommending the vitamin now as a flu preventive. One asks the question, "Why is the winter time also flu season? Less sunshine = less Vitamin D!
Another important function of it is that it keeps you r body's PH in balance. With an imbalance, all kinds of problems can occur.
So with all this knowledge, I'm going to take it to heart and try to remember to take my D capsule every day. It's easy, because the Carlson's capsule is tiny. I trust Carlson's reputation for harvesting only the best in vitamins and nutrients and processing them in the least harmful manner to ensure potency.