- Highest quality vitamins and supplements since 1973
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- Scientifically formulated
- Helps support a healthy immune system
- Soy & Gluten Free
- 3 month supply
- During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers’ recommendations, when provided.
From the manufacturer
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For over 45 years, Puritan’s Pride has been trusted by generations of families as their health and wellness partner. Our mission has always been to provide the highest quality nutritional supplements. |
We manufacture our supplements right here in the U.S.A., rigorously testing and inspecting them up to 15 times to ensure purity, potency, and consistency in every bottle. |
Product Description
Vitamin D3 is a more potent and bioavailable form compared to D2. Assists the body with calcium absorption. Vitamin D plays a regulatory role in the growth, differentiation, and proliferation of different types of white blood cells.8** It is important to regulate these processes to maintain immune balance. The T and B cells of the adaptive immune system are both regulated by vitamin D.** Many cells of the innate immune response also require vitamin D such as monocytes which need it to mature properly.** Adequate concentrations of vitamin D are also necessary for the synthesis of important proteins with immune-fighting properties. As we age, the skin produces vitamin D less efficiently.