Nature's Sunshine Vitamin D3 (60 tabs) (180 tabs)

 Benefits: Supports bone health. Helps maintain the immune system. May help improve mood. Provides 2,000 IU vitamin D per tablet. How It Works: Vitamin D comes in two forms: D2 and D3. Of the two, D3 is more bioactive. The body synthesizes vitamin D3 from cholesterol and sunlight; which makes it difficult to obtain adequate amounts of vitamin D during cloudy or winter months. In the body, vitamin D is responsible for maintaining normal blood levels of calcium and phosphorus, and helping to build strong bones. Vitamin D may also contribute to the overall health of the cardiovascular system. It works with other vitamins, minerals and hormones to promote bone mineralization. Research shows that vitamin D may help support a healthy immune system by regulating lymphocyte function, cytokine production and macrophage activity. Studies also show that Vitamin D may improve seasonal mood disorders. Ingredients: 2,000 IU Vitamin D3 per tablet (500% Daily Value). Recommended Use: Take 1–2