What symptoms can indicate a need for more vitamin D?
• Bone pain and/or soft bones • Frequent bone fractures • Bone deformities or growth retardation in children • Lack of exposure to sunlight for any reason, including geography, use of sunscreen, or wearing of protective clothing Why is D3 preferred? There are two main options to supplement with Vitamin D. D2 (ergocalciferol) is produced from irradiated fungi in a laboratory. D-3 (cholecalciferol) is the form typically extracted from fish oil or food sources. Due to the manufacturing process, it seems that D2 has been associated with more potential side effects, and has greater risks for toxic contamination. D-3 matches what is produced by human skin, and is much more efficiently converted by the liver to support circulating active levels of 25-HydroxyVitamin D. Potency and quality are key in D-3 supplement choice, and only pharmaceutical grade products are held to consistent content and quality standards. While some studies and pharmaceutical companies use D2 supplements, we believe th