Bio-D-Mulsion Forte® supplies 2,000 IU per drop of vitamin D3 as a micro-emulsion for enhanced absorption and utilization, which is particularly important for those with malabsorption conditions. Published clinical studies have demonstrated significant improvements in 25(OH)D concentrations (202% increase) in as little as six weeks after beginning supplementation with Bio-D-Mulsion Forte. The majority of people in the United States do not synthesize sufficient vitamin D in order to meet physiological requirements.