D-4000, Natural Vitamin D3

D-4000™ is a dietary supplement that seeks to support bone and immune health with a generous amount of bioavailable vitamin D-3.

Karuna offers vitamin D as cholecalciferol in its higher-dose, natural D-4000™ supplement. Cholecalciferol (vitamin D3) is the form of vitamin D that appears to be more bioavailable, more easily converted and better able to bind than ergocalciferol (vitamin D2). Further study into this essential nutrient is showing its potential for more than just bone health and calcium absorption. The adrenal glands, brain, colon, immune system, pancreas, prostate and skin are a few of the examples of tissues that possess vitamin D receptors or that express the enzyme for its activation..

• A higher-potency natural formula
• 4,000 IU vitamin D-3 (1,000% DV) per capsule
• Seeks to maintain bone strength
• Seeks to promote calcium and phosphorus absorption
• Best absorbed when taken after a meal

Discuss the best daily intake amount of vitamin D with your healthcare provider. Multiple experts are suggesting that minimum daily consumption should be at least 2,000 IU, which is significantly higher than the current Recommended Dietary Allowance.