Momentous Vitamin D3.
50 mcg (2,000 IU) of plant-based vitamin D3 in one capsule a day, in organic extra virgin olive oil to help absorption. NSF Certified for Sport, vegan and gluten-free. A simple everyday dose.
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Price checked on livemomentous.com on October 22, 2026 (one-time purchase, 60-capsule bottle; Momentous also offers a subscribe-and-save price). Prices change, so check the current price before you buy.
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Momentous Vitamin D3 in 60 seconds.
Why it made the stack
Key takeaways.
IU of vitamin D3 per capsule (50 mcg). That is the daily dose tested in the large VITAL trial, and it sits well under the 4,000 IU upper limit the NIH lists for adults.
Each capsule is made with organic extra virgin olive oil, so the fat that helps vitamin D absorb is built in. Momentous says you can take it with or without a meal.
Certified for Sport. Independent testing screens for banned substances and checks that the label matches what is inside. Momentous also lists a July 2025 third-party test by Light Labs.
From the label
Every number, in plain sight.
One capsule gives 50 mcg of vitamin D, 250% of the Daily Value. The D3 is plant-based, so this one is vegan.
From the Momentous Vitamin D3 2000 IU product page, checked October 22, 2026. Always read the label on the bottle you buy.
Other ingredients: organic extra virgin olive oil, hypromellose (capsule) and candelilla wax. Vegan and gluten-free.
What the research says
What the evidence shows.
Bones and training stress
In a randomized trial of 5,201 female Navy recruits, 2,000 mg of calcium plus 800 IU of vitamin D a day during 8 weeks of basic training cut stress fractures by about 20% compared with placebo. Vitamin D is essential for absorbing calcium, and correcting a shortfall matters most for people under heavy training load.
Lappe J et al. J Bone Miner Res 2008;23:741–749. doi:10.1359/jbmr.080102
Healthy adults, long term
VITAL gave 25,871 U.S. adults 2,000 IU of vitamin D3 a day, the same dose as this capsule, for about 5 years. It did not lower invasive cancer or major heart events compared with placebo. A follow-up analysis found no drop in fractures either, in people who were not selected for low vitamin D. The takeaway: vitamin D fixes a shortfall; it is not extra protection for people who already have enough.
Manson JE et al. N Engl J Med 2019;380:33–44. doi:10.1056/NEJMoa1809944 · LeBoff MS et al. N Engl J Med 2022;387:299–309. doi:10.1056/NEJMoa2202106
Immune support
A meta-analysis of 43 randomized trials found vitamin D slightly lowered the risk of acute respiratory infections overall. The benefit showed up mainly with daily doses of 400 to 1,000 IU, not with large doses, so more is not necessarily better.
Jolliffe DA et al. Lancet Diabetes Endocrinol 2021;9:276–292. doi:10.1016/S2213-8587(21)00051-6
Before you buy
What you should know.
- Count your total. 2,000 IU is half the 4,000 IU daily upper limit the NIH lists for adults. If you also take a multivitamin or another vitamin D product, add them up.
- A blood test tells you more. A 25-hydroxyvitamin D test is the best way to know if you are low. If you are, your doctor may suggest a higher dose for a while.
- Sun and food count too. If you get regular sun and eat fortified foods or fatty fish, you may need less. Momentous also sells a 5,000 IU version for people with a known shortfall.
- It is vegan. Momentous uses plant-based D3 and calls the product vegan, gluten-free and allergen-free.
- Check with your doctor first if you are pregnant, have kidney disease or high calcium, or take thiazide diuretics, steroids or weight-loss drugs like orlistat.
Great fit if you…
- Want a simple daily vitamin D dose
- Get little sun, especially in winter or at northern latitudes
- Eat plant-based or compete in tested sport
How to take it
- 1 capsule a day, as Momentous directs
- With or without food; the olive oil supplies the fat for absorption
- Ask your doctor about a blood test if you are unsure of your levels
FAQ
Quick answers.
Is 2,000 IU a day a safe amount?
For most healthy adults, yes. It is half the 4,000 IU daily upper limit the NIH lists for adults. Count any vitamin D from a multivitamin or other supplements toward your total, and ask your doctor first if you have kidney disease or high calcium.
Should I get my vitamin D level tested?
It is the best way to know where you stand. Your doctor can order a 25-hydroxyvitamin D blood test and tell you whether 2,000 IU a day is enough or whether you need more for a while.
Is Momentous Vitamin D3 2000 IU vegan?
Yes. Momentous says it uses plant-based vitamin D3 and describes the product as vegan, gluten-free and allergen-free.
Does vitamin D prevent cancer or heart disease?
Not in healthy adults, based on the best evidence. The VITAL trial gave 25,871 adults 2,000 IU a day, the same dose as this capsule, for about 5 years and found no drop in invasive cancer or major heart events compared with placebo.
Do I need to take it with food?
Not necessarily. Each capsule contains organic extra virgin olive oil, the fat that helps vitamin D absorb, so Momentous says it can be taken with or without a meal.
Sources
- Lappe J et al. Calcium and vitamin D supplementation decreases incidence of stress fractures in female navy recruits. J Bone Miner Res 2008;23:741–749. doi:10.1359/jbmr.080102
- Manson JE et al. Vitamin D supplements and prevention of cancer and cardiovascular disease (VITAL). N Engl J Med 2019;380:33–44. doi:10.1056/NEJMoa1809944
- LeBoff MS et al. Supplemental vitamin D and incident fractures in midlife and older adults. N Engl J Med 2022;387:299–309. doi:10.1056/NEJMoa2202106
- Jolliffe DA et al. Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis. Lancet Diabetes Endocrinol 2021;9:276–292. doi:10.1016/S2213-8587(21)00051-6
- NIH Office of Dietary Supplements. Vitamin D: Fact Sheet for Health Professionals. ods.od.nih.gov
- Momentous. Vitamin D3 2000 IU product page and supplement facts. livemomentous.com, checked October 22, 2026.
- NSF. Certified for Sport program. nsfsport.com.
This page is for general information and is not medical advice. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.