Vitamin D3


Vitamin D may play a role in the prevention and treatment of type 1 and type 2 diabetes, hypertension, multiple sclerosis, and other medical conditions including rheumatoid arthritis and congestive heart failure. Many Americans have Vitamin D insufficiency and higher dosages of D3 may be necessary in the short term to overcome deficiencies.


Prolog’s Vitamin D3 product is designed for the couple having difficulty conceiving, undergoing fertility treatments by inseminations or IVF, with unexplained infertility, or recurrent pregnancy loss.

Vitamin D3, cholecalciferol, is a steroid hormone synthesized by the skin that regulates blood calcium levels as well as cell growth and differentiation. With respect to fertility, vitamin D receptors and vitamin D metabolizing enzymes are found in reproductive tissues of women and men. Vitamin D insufficiency is a common condition and has been associated with decreased embryo implantation potential, increased miscarriage risks and various problems in pregnancy. In men, inadequate Vitamin D has been related to sperm motility problems.

Vitamin D may play various roles in human reproduction and several recently published studies indicate that vitamin D levels are predictive of implantation and ongoing pregnancy rates in in vitro fertilization (IVF).

Additional information

Weight 1 lbs

120 Count, 2000 IU, 120 Count, 5000 IU, 180 Count, 1000 IU, 240 Count, 5000 IU

Disclaimer: None of the above statements have been evaluated by the United States Food and Drug Administration (FDA). These products are not intended to diagnose, treat, cure or prevent any disease. Please consult your health care professional before taking any and all supplements. Individual results may vary.

Every Prolog Health product exceeds the standards and requirements set forth in the FDA’s Code of Federal Regulation (21 CFR, 111) Current Good Manufacturing Practices (CGMP).

All products are made in the United States with all ingredients of highest verifiable quality.