Everyone needs vitamin D. But not everyone needs the same amount. That’s why Natural Factors offers the benefits of vitamin D3 in strengths from 400 IU to 2500 IU.

Why choose Natural Factors Vitamin D3?

Natural Factors' product features vitamin D3, which is better at raising your 25(OH)D levels than vitamin D2 and lasts longer in your body.

Vitamin D

Keep your sunny outlook year-round with the sunshine vitamin! Vitamin D, essential for both children and adults, is critical for tooth and bone health and helps regulate the body’s immune response.

Medicinal Ingredients (each tablet contains):
Vitamin D3 (cholecalciferol)  |  1000 IU (25 mcg)

Recommended adult dose: 

1 tablet daily or as directed by a health care practitioner.

Caution

Keep out of the reach of children.

Allergy Information

Contains no artificial colours, preservatives, or sweeteners; no dairy, sugar, wheat, gluten, yeast, soy, egg, fish, shellfish, salt, tree nuts, or GMOs. Suitable for vegetarians.

Chapuy, Marie C., et al. "Vitamin D3 and calcium to prevent hip fractures in elderly women." New England journal of medicine 327.23 (1992): 1637-1642. http://www.nejm.org/doi/pdf/10.1056/NEJM199212033272305 

Trivedi, Daksha P., Richard Doll, and Kay Tee Khaw. "Effect Of Four Monthly Oral Vitamin D₃ (Cholecalciferol) Supplementation On Fractures And Mortality In Men And Women Living In The Community: Randomised Double Blind Controlled Trial." BMJ: British Medical Journal (2003): 469-472. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC150177/ 

Wang, Thomas J., et al. "Vitamin D deficiency and risk of cardiovascular disease." Circulation 117.4 (2008): 503-511. https://circ.ahajournals.org/content/117/4/503.full