Description Vitamin D Liquid 500 IU 1oz is available by Thorne Research.It is essential to maintain healthy vitamin D levels throughout all stages of life, from fetal development to old age.* Vitamin D helps protect a number of important functions in the body.* The current recommended daily vitamin D intake of 200-600 IU is based on the minimum allowance to protect against bone disease. However, an upward revision of the FDA's guideline is now under consideration in light of new research, especially pertaining to immune function. Although direct sunlight exposure is a good source of vitamin D, many people do not get enough sun due to season change, latitude, or lifestyle. Therefore, vitamin D supplementation can be of great benefit in these cases.*The Vitamin D Council (VDC) is a non-profit organization of medical professionals, vitamin D researchers, and concerned citizens whose goal is to educate professionals and the public on vitamin D deficiency and its associated health risks. They recommend that infants and children under age one receive 1,000 IU/day vitamin D3. This is especially important for breast-fed infants as breast milk contains very little vitamin D. The VDC says the exceptions to this are if the lactating mother is taking sufficient vitamin D (4,000-6,000 IU/day) to produce vitamin-D rich breast milk or the child is exposed to sufficient sunlight. They recommend 600 IU/day for formula-fed infants. The VDC goes on to recommend 1,000 IU/25 lb body weight/day for children over age one. Children age 10 and above, according to the VDC, should follow adult recommendations.The VDC recommends an average of 5,000 IU/day vitamin D for adults. Better yet, they suggest testing 25-hydroxyvitamin D levels and dosing accordingly. Ideal blood levels should fall between 50-80 ng/mL.*Thorne's Vitamin D Liquid is in a base of medium chain triglyceride oil, preserved with mixed tocopherols.Ingredients:Serving Size: One [1] DropServing per Container: 1200Each Drop Contains:Vitamin D ...500 IU / 125% DV(as Vitamin D3)Daily Value (DV)Other Ingredients: Medium Chain Triglyceride Oil, Mixed Tocopherols.WARNINGS:TAMPER EVIDENT: Use only if bottle is sealed.WARNING: If pregnant, consult your health care practitioner before using this product.STORE TIGHTLY SEALED IN A COOL DRY PLACE.