21st Century, D3, 50 mcg (2,000 IU), 250 Tablets

21st Century Vitamin D3 provides vitamin D3, the natural form of vitamin D produced by the skin in response to sunlight. Vitamin D3 supports calcium absorption for strong bones and teeth, immune function, and overall wellness. Many people don't get enough vitamin D from sunlight or diet alone, making supplementation important for maintaining adequate levels. These tablets offer a convenient and affordable way to support vitamin D intake. Vitamin D is a fat-soluble vitamin, so it's best taken with meals containing fat for optimal absorption. Regular testing can help determine individual needs.