Vitamin D, the sunshine vitamin, is produced by the skin when it is exposed to sunlight. Although direct sunlight exposure is a great source of vitamin D, due to the use of sunscreen, seasonal changes, geography, and lifestyle, many individuals don’t get enough sun, so they can be prone to having a low level of vitamin D. Therefore, finding the best vitamin D supplement can provide great health benefits.* Thorne’s Vitamin D Liquid for adults and children makes supplementation easy. Benefits of Thorne’s Vitamin D Liquid: Supports healthy teeth and bones* Promotes lean muscle mass and helps maintain muscle strength* Enhances the absorption and retention of calcium* Supports healthy brain function and positive mood* Promotes cardiovascular health and immune function* Features of Thorne's Vitamin D Liquid: Liquid form makes supplementation easy to customize for adults and children Can be mixed with food or beverages for ease of use Formulated with vitamin D3, a more potent and better absorbed form than vitamin D2 In a base of medium-chain triglyceride oil without soy oil or sesame oil, and is preserved with mixed tocopherols (natural vitamin E) The self-dispensing top provides accurate and individualized dosing by metering individual drops You could be at risk of a vitamin D deficiency if you: Rarely go outdoors, live in the northern latitudes, or have a darker skin tone Have limited sun exposure due to your occupation, clothing choices, or engage in indoor athletics rather than outdoor sports Regularly wear sunscreen with an SPF greater than 8 Are an older adult (the risk of a deficiency increases with age beginning at age 50) Have a chronic health condition, such as a bowel disease or a surgical procedure (like gastric bypass), that can decrease fat absorption Are obese