Nature's Answer Vitamin D3 4000IU Drops For Bone & Muscle Health delivers 4,000 IU per 2 drops serving in extra virgin gold olive oil, contributing to joint and bone health by helping the body absorb calcium. Nature's Answer vitamin D-3 drops have no fillers, tableting agents, or other additives you'll find in other brands, Just Vitamin D3 and Olive Oil. Vitamin D3, also known as cholecalciferol, is a supplement that helps your body absorb calcium. It's typically used to treat people who have a vitamin D deficiency or related disorder, such as rickets or osteomalacia. Research has shown that those not taking a vitamin D3 supplement have double the rate of deficiency compared to those who do take a supplement. Vitamin D-3 is vital for many functions in our bodies, vitamin D also influences a host of key biological functions vital to health and well-being. Vitamin D3 helps the body absorb and use calcium and phosphorus for strong bones and teeth. Nature's Answer has identified mother nature's unique botanical fingerprint on over 800 plant reference standards utilizing advanced botanical fingerprint technology. Nature's Answer feature the highest quality of organic, responsibly wildcrafted or cultivated herbs, which maintain the naturally-occurring constituents found in the plant.