Vitamin D3 50,000 - 50,000 IU, 50 softgels

SKU: PH478

Sale price

Regular price $19.49
( / )

Select Size

  • Have questions about this product?
    Ask one of our experts.
  • click here

Free Nutritional Advisor

Free Nutritional Advisor

Helps combat age-related health issues, improves bone strength and density 

  • Promotes calcium absorption
  • Supports healthy immune function

Research-Supported Benefits:

Supports Healthy Aging. Aging can impact how vitamin D is metabolized in the body increasing the risk of skeletal health issues as well as other age-related health concerns such as impaired brain health, lowered immune function and heart health concerns. Research demonstrates supplementing with vitamin D may help maintain healthy vitamin D levels with age and reduce the risk of age-related health concerns.1

Supports Bone Health. Bone remodeling occurs throughout our lifetime. As we age, the rate of bone tissue generation decreases leading to skeletal weakness and frailty. Research shows that vitamin D, in combination with calcium, can increase bone tissue formation, strength and density.2, 3

Supports Immune Health. Decreased immunity is common among those over 40. Low levels of vitamin D have been associated with increased bacterial and viral infections. Maintaining appropriate vitamin D levels has been shown to improve the innate and adaptive response of the human immune system, including dental and intestinal infections.4


1. Mark KA, Dumas KJ, Bhaumik D, et al. Vitamin d promotes protein homeostasis and longevity via the stress response pathway genes skn-1, ire-1, and xbp-1. Cell Reports. 2016;17(5):1227-1237. doi:10.1016/j.celrep.2016.09.086  

2. Veldurthy V, Wei R, Oz L, Dhawan P, Jeon YH, Christakos S. Vitamin D, calcium homeostasis and aging. Bone Res. 2016;4(1):1-7. doi:10.1038/boneres.2016.41  doi:10.1038/boneres.2016.41  

3. Hill TR, Aspray TJ, Francis RM. Vitamin D and bone health outcomes in older age. Proceedings of the Nutrition Society. 2013;72(4):372-380. doi:10.1017/S0029665113002036 

4. Ismailova A, White JH. Vitamin D, infections and immunity. Rev Endocr Metab Disord. 2022;23(2):265-277. doi:10.1007/s11154-021-09679-5

  • Vitamin D, a fat-soluble vitamin, is essential to maintaining total body health, yet is not found in many foods. It's needed daily to keep bones and teeth strong over your lifetime, and to ensure the proper functioning of the heart, muscles and nerves - it even helps your blood to clot. A daily regimen of this D3 (cholecalciferol) is the best way to treat and prevent vitamin D deficiency, whether from lack of sunlight, poor nutrition, chronic illness or aging.
  • D3 50,000™ offers support for healthy bones and supports the immune system by maintaining normal blood levels of calcium and phosphorus, thus promoting calcium absorption.
Supplement Facts
Serving Size: 1 Softgel
Servings Per Container: 50
Amount Per Serving %DV
Vitamin D3 (Cholecalciferol) from Lanolin
1250 mcg (50000 IU) 6,250%
*Percent Daily Value (DV) based on a 2,000 calorie diet
  • OTHER INGREDIENTS: Fractionated coconut oil (MCT), gelatin.
  • DOES NOT CONTAIN: Dairy, egg, soy, wheat, gluten, corn, fish, shellfish, peanuts.
  • SUGGESTED DAILY USE: As directed by your healthcare practitioner.
  • CAUTION: Vitamin D levels should be monitored and maintained within safe limits.
    Designed for use only under the direction of your healthcare professional. Not intended for use if you are pregnant or nursing. Not formulated for use in children. If you have a medical condition or are taking medications, consult with your healthcare professional before using this product
  • NOTE: Store in a cool, dry place, away from direct sunlight. Do not use if tamper-evident packaging is broken. Keep out of reach of children.

Better Vitamin D Source. Compared to other products that commonly use vitamin D2, we use vitamin D3 (cholecalciferol). This is the natural form and more absorbable and potent compared to D2.

Higher Dose. ProHealth’s Vitamin D3 contains 50,000 IU’s per serving, 12,500% of the daily value. The strongest single dose available on the market at a cost far less than you would pay at the pharmacy.

Meets US Pharmacopeia Standards. Our vitamin D3 meets US Pharmacopeia standards.

No Unnecessary Ingredients. Our vitamin D3 is free from yeast, wheat, gluten, sugar, eggs, peanuts, tree nuts, fish, shellfish, dye and preservatives.

Quality Manufacturing Practices. All of our products are manufactured in an FDA-registered, GMP-certified facility.

Third-Party Tested in the USA. Every batch is third-party tested in US laboratories to ensure the highest quality, purity and potency. Certificates of Analysis are available.

which supplements are right for you?

Our Longevity Health Pros are just a text away with supplement & dietary answers, guidance & support.

Benefits +
How it Works +
How Ours is Better +
Label Information +
Benefits +
How it Works +
How Ours is Better +
Label Information +

Customer Reviews

Based on 50 reviews
Great product

Excellent product, small soft gels that my whole family can swallow easily.

Mehrdad T.


JoAnne G.
Taking this for 17yrs

Vitamin D3 has done wonders for my immune system.


Great product. I normally take just one per week.


Vitamin D3 50,000 - 50,000 IU, 50 softgels

Dan P.

I need it but didn't know. If your on prescription consult you doctor

Camden H.

I mean, its vit d and its 50k iu. You're either getting a 5 or a 1 here and since we got 2 correct out of 2 possible then looks like we're awarding 5 points. Congrats.

Irena V.

Excellent supplement

Vit D

My Vit D levels were low but after taking this for 2 months my levels were at the high range, works well. I did take with Vit K for absorption.

Cynthia C.

My script for this amount of D3 was no longer covered by my insurance. Found your site for the same amount (50,000 IU) ordered it and I am pleased.

Frequently asked questions

This product is not intended for daily use. Please consult your healthcare provider to determine the dosage frequency that is right for you.
Since Vitamin D3 does not interfere with circadian rhythm or have stimulant properties, it can be taken any time of day.
Vitamin D3 is a fat-soluble vitamin. For best absorption, take with a meal that contains some fat.
Keep Vitamin D3 at room temperature and out of direct sunlight.
Vitamin D3 side effects are quite rare and have only been observed in those taking excessively high doses.