Vitamin D3 Ultra Strength

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Jarrow Formulas® Vitamin D3 (cholecalciferol) may help improve vitamin D status better than equivalent amounts of ergocalciferol (D2). D3 is also the form produced by skin with UVB exposure (sunlight). Vitamin D3 is converted to its hormonally-active form, calcitriol, in the body as needed. Calcitriol enhances dietary calcium and phosphorous absorption, supports the production of osteocalcin (an important structural protein in bone), and supports a healthy immune response.


Supplement Facts

Serving Size 1 Softgel

Servings Per Container 100

Amount Per Serving % Daily Value
Vitamin D₃ (as Cholecalciferol) 62.5 mcg (2,500 IU) 313%

Other Ingredients: Olive oil, softgel (bovine gelatin, glycerin, water)

Suggested Use: Adults take 1 softgel once a day with a fat-containing meal or as directed by your qualified healthcare professional.

Warning: Individuals consuming more than 50 mcg (2,000 IU) per day of vitamin D should periodically obtain a serum 25-hydroxy vitamin D measurement. Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition (especially kidney stone or dysfunction, hyperparathyroidism, hypercalcemia, lymphoma, or sarcoidosis); if adverse reactions occur, discontinue use.

Storage Instructions: Do not use if safety seal is damaged or missing. Keep out of the reach of children. Store in cool, dry place.

Other Information: No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame.




Q: How much vitamin D do I need each day?

In 2016, the Food and Nutrition Board increased the Recommended Dietary Allowance (RDA) of vitamin D for most adults from 10 mcg (400 IU) to 15 mcg (600 IU) per day, and 20 mcg (800 IU) for ages 70+.

Some doctors and nutritionists recommend higher daily vitamin D intakes, especially for those at risk for having low levels. The Vitamin D Council, an organization dedicated to raising awareness about vitamin D, recommends average adults supplement with 125 mcg (5,000 IU) of vitamin D daily. Talk with your doctor about your individual needs.