Momentous Vitamin D3 5000 IU (NSF Certified for Sport)Review 2026

Verdict: BUY (athlete-tier). EDE Score 88/100. Momentous Vitamin D3 5000 IU is the cleanest NSF Certified for Sport vitamin D on the market: single ingredient cholecalciferol at the top of the clinical effective range, every batch tested for 290 WADA-banned substances, $0.28 per effective day. The capsule lacks a built-in fat source (unlike the 2000 IU EVOO version) and contains no K2 MK-7 synergistic partner, which is why our Vitamin D + K2 TOP PICK remains Sports Research D3 + K2 at EDE 90. For drug-tested athletes, NCAA athletes, military, first responders, and anyone who values batch-tested purity over K2 co-formulation, this is the right buy.

This article contains paid links. We may earn a commission if you purchase through these links. Commissions never influence our scoring. Read our methodology and editorial policy.

At a glance

Metric	Value
Brand	Momentous
Product	Vitamin D3 5000 IU (NSF Certified for Sport)
Form	Capsule
Servings per bottle	60 (1 capsule = 1 serving)
Dose per serving	5000 IU (125 mcg) cholecalciferol
Other ingredients	Rice flour, hypromellose, magnesium stearate, silica
Third-party testing	NSF Certified for Sport (every batch)
Price brand-direct	$16.95
Price Amazon	$14.41 (Subscribe and Save) / $16.95 one-time
CPED	$0.28 per effective day
Best-in-class CPED for vitamin-d category	$0.43 per effective day (Sports Research D3 + K2)
EDE Score	88/100
Verdict	BUY (athlete-tier)

Why this product matters for men 40+

Vitamin D is the single most under-supplemented and over-recommended micronutrient in the men's health space. Roughly 40% of US adults are clinically deficient (serum 25-hydroxyvitamin D below 20 ng/mL), and another 30-40% sit in the insufficient range (20-30 ng/mL).¹ For men 40 and older, suboptimal vitamin D status is associated with reduced testosterone, poorer skeletal muscle function, slower recovery, weaker bone mineral density, and elevated all-cause mortality risk.²

The link between vitamin D and testosterone is one of the better-replicated findings in nutritional endocrinology. A 2011 randomized trial in 165 men by Pilz and colleagues showed that 12 months of 3332 IU/day vitamin D3 supplementation increased total testosterone by approximately 25%, free testosterone by 20%, and bioavailable testosterone by 19% in men with baseline 25(OH)D below 30 ng/mL. The placebo group saw no change.³ Subsequent trials have not all replicated the effect size, but the pattern is consistent: vitamin D supplementation in deficient or insufficient men tends to nudge testosterone upward, while supplementation in already-replete men shows little to no additional T benefit.

The clinical effective dose for adult men, per the NIH Office of Dietary Supplements, sits between 2000 and 5000 IU per day depending on baseline status, body weight, and sun exposure. Men over 40 with darker skin, indoor occupations, or northern latitudes (above 37 degrees north of the equator) typically need the upper end of that range. The 4000 IU Tolerable Upper Intake Level set by the Institute of Medicine in 2010 has been disputed by the Endocrine Society and a growing body of researchers who argue 5000 to 10000 IU/day is safe for adults under medical guidance. The Endocrine Society's 2011 clinical practice guideline for vitamin D explicitly recommends up to 10000 IU/day for adults treating deficiency.⁴

This is the dose target Momentous Vitamin D3 5000 IU hits. One capsule, once a day, with food. No proprietary blend tricks. No combination products you have to disassemble. Just cholecalciferol at the dose the literature actually supports.

Editorial commentary

Momentous occupies a specific niche in the supplement market: athlete-tier, NSF Certified for Sport, premium positioning, partnership-driven distribution (USOPC, NFL teams, NCAA programs). Their entire product line is designed around drug-tested-athlete compliance. Every batch of every product is independently tested for WADA-banned substances. This is the gold standard. Most consumer-grade supplements don't carry this certification because it is expensive and operationally difficult to maintain. Momentous makes it the baseline.

For Vitamin D3 specifically, this matters less than it does for ingredients with higher contamination or adulteration risk (Tongkat Ali, ashwagandha, herbal extracts), because cholecalciferol is a single, well-characterized molecule. There is essentially zero risk that a vitamin D supplement is going to fail an NCAA or NFL drug test on the basis of contamination. So why pay for NSF Sport on a vitamin D product?

Two reasons. First, athletes building a stack want every input certified, not just the high-risk ones. A pro NFL player taking 12 supplements daily wants 12 NSF Sport certifications. There is no margin for the supplement that "probably isn't a problem". Second, NSF Sport certification correlates strongly with general manufacturing quality: facilities that maintain NSF Sport certification almost always also maintain stricter raw material sourcing, batch documentation, and label accuracy than facilities that don't. Buying NSF Sport for vitamin D is buying signaling on quality control even when doping risk is low.

The trade-off, on this specific product, is K2 MK-7. Sports Research Vitamin D3 + K2, our category TOP PICK at EDE 90/100, includes 100 mcg of K2 as MK-7 alongside 5000 IU of D3. K2 MK-7 directs calcium toward bone deposition and away from arterial calcification, which is mechanistically important when running high-dose D3 for years. The Rotterdam Study and several follow-up cohorts have shown K2 supplementation correlates with reduced cardiovascular calcification and lower all-cause mortality.⁵ If you take 5000 IU of D3 long-term without K2, you are not maximizing the benefit and you are arguably missing a real safeguard.

So this is a clean BUY, not a TOP PICK. NSF Certified for Sport at $0.28 per day, single ingredient transparency, and brand-direct distribution from one of the most quality-conscious operators in the industry. But if you don't need NSF Sport certification specifically, Sports Research's D3 + K2 softgel does more for slightly more money ($0.43 per effective day) and earns the TOP PICK status.

This product also fits a specific Pattern we've documented across the DosedWise catalog: same category, two valid winners for two different buyers. Tongkat Ali has Nootropics Depot (TOP PICK 90, eurycomanone-standardized) for the general buyer and Momentous Tongkat Ali (BUY 77, Informed Sport, whole-root) for the drug-tested athlete. Vitamin D now follows the same template: Sports Research (TOP PICK 90, D3 + K2 softgel) for the general buyer and Momentous (BUY 88, NSF Sport, D3 standalone) for the athlete who needs every input certified.

What is actually in it

Ingredient	Form	Dose per serving	Clinical effective dose	% of effective dose	Evidence level
Vitamin D3	Cholecalciferol	125 mcg (5000 IU)	2000-5000 IU/day	100-250%	strong

Other ingredients (inactives): Rice flour (filler), hypromellose (vegetarian capsule shell), magnesium stearate (anti-caking), silicon dioxide (anti-caking).

This is one of the simplest supplement formulations on the market. One active ingredient. Four inactive ingredients, all standard pharmaceutical-grade excipients. No proprietary blend, no added oils, no botanical extracts, no emulsifiers beyond the standard four.

The trade-off of this minimalism is the absence of a built-in fat source. Cholecalciferol is fat-soluble. Absorption rates are markedly higher when D3 is consumed with dietary fat (one analysis showed approximately 32% higher serum 25(OH)D response when D3 was taken with a fat-containing meal versus without).⁶ Momentous's own dosing instructions tell you to take this with a fat source or meal. The 2000 IU version of this product solves this by suspending the D3 in organic extra virgin olive oil inside the capsule. The 5000 IU version does not. This is an actual functional gap in the formulation, not a marketing complaint.

EDE Score breakdown

Criterion	Weight	Score (0-100)	Weighted contribution
Dose Efficacy	30%	92	27.6
Bioavailability	20%	72	14.4
Third-Party Testing	15%	100	15.0
Label Transparency	15%	100	15.0
Manufacturer Reputation	10%	88	8.8
Community Sentiment	5%	50	2.5
Price Per Effective Dose	5%	100	5.0
Total EDE Score	100%		88/100

See full methodology

Notes on each criterion:

Dose Efficacy (92): 5000 IU sits at the top of the NIH ODS clinical effective range for adult men. Slightly under maximum because individual response varies; some men with very low baseline 25(OH)D and high body weight may need 7500-10000 IU short-term to reach optimal serum range, which this product cannot deliver in a single capsule.

Bioavailability (72): Cholecalciferol is the correct active form. Capsule (not softgel) with rice flour filler and no built-in oil base sits between oil-softgel (85) and tablet (70) on our bioavailability rubric. Absorption depends on user remembering to take with fat. No K2 MK-7 synergistic partner.

Third-Party Testing (100): NSF Certified for Sport. Every batch tested for 290 WADA-banned substances and label accuracy. Verified on the NSF Sport database.

Label Transparency (100): Single active ingredient, exact mg/IU disclosed. Inactive ingredients all disclosed. No proprietary blend.

Manufacturer Reputation (88): Momentous launched in 2020 with backing from Dr. Andrew Huberman (Stanford neuroscience) and Dr. Andy Galpin. Active partnerships with USOPC, multiple NFL teams, and NCAA athletic programs. No FDA warning letters. No recalls. The reputation ceiling is held back from 95-100 only because the brand is younger than practitioner-grade incumbents (Thorne, Pure Encapsulations, Designs for Health).

Community Sentiment (50): Phase 1 default. Reddit Intelligence layer arrives Q3 2026; this score will be replaced by aggregated subreddit data at that point.

Price Per Effective Dose (100): $0.28 per effective day = below $0.50 threshold = maximum score. Notably, this is lower than the category TOP PICK CPED ($0.43).

What we like

• NSF Certified for Sport, every batch tested. Verified on the NSF Sport database. This is the gold standard for athletic compliance. Drug-tested NCAA athletes, NFL players, military service members, and first responders can take this with zero risk of supplement-sourced positives.
• 5000 IU cholecalciferol matches the upper end of the NIH ODS clinical effective range for adult men. Most men 40+ with limited sun exposure benefit from this dose tier rather than the 1000-2000 IU general-population recommendation.
• Single ingredient, single capsule, single daily dose. No stacking, no timing complexity, no proprietary blend math.
• Label transparency at 100/100. The Supplement Facts panel discloses exact mg and IU. Inactives are all standard pharmaceutical-grade excipients with no surprises.
• CPED of $0.28 per effective day is lower than the category TOP PICK ($0.43). NSF Sport certification on this product does not carry a price premium versus uncertified D3 + K2 alternatives.
• Momentous distributes brand-direct, on Amazon, and through specialty retailers (Vitamin Shoppe, Vitacost, the Feed). Authentic supply chain across multiple channels.
• Manufacturer track record is clean: no recalls, no warning letters, scientific advisory backing, transparent sourcing claims.

What we don't like

• No K2 MK-7. Long-term high-dose D3 supplementation pulls calcium into circulation; K2 MK-7 directs it preferentially to bone rather than arterial walls. The Sports Research D3 + K2 product (our category TOP PICK) includes 100 mcg of K2 MK-7 alongside identical 5000 IU D3 dosing. Momentous does not.
• Capsule, not oil-softgel. The 2000 IU Momentous version uses extra virgin olive oil as a built-in fat source for absorption optimization. The 5000 IU version uses dry rice flour. You must remember to take this with a meal containing fat. Forgetting halves your serum response.
• Not vegan. The hypromellose capsule is vegetarian, but the brand explicitly states the 5000 IU version is "not vegan" (likely because of trace gelatin or non-plant cholecalciferol sourcing in this SKU specifically).
• Smaller bottle size than category competitors. 60 servings = 2 months of daily dosing. Sports Research 5000 IU + K2 ships in 90-count and 360-count formats with better per-serving economics at scale.
• No iHerb listing as of publication date. Brand-direct, Amazon, and select retailers only. International readers may have higher shipping friction.
• Price-per-bottle ($16.95) is mid-tier, not budget. Now Foods Vitamin D3 5000 IU runs $0.10 per effective day on Amazon. If you do not need NSF Sport certification, you are paying a roughly 180% premium for the certification.

Cost per effective day (CPED)

Bottle price (brand-direct): $16.95
Servings per bottle: 60
Clinical effective dose: 5000 IU per day
Clinical servings per day: 1
Days of effective dosing per bottle: 60
CPED: $16.95 / 60 = $0.2825 per effective day

Momentous Vitamin D3 5000 IU costs $0.28 per effective day at brand-direct pricing.

For comparison, the best-in-class CPED for vitamin-d category is $0.43 per effective day (achieved by Sports Research Vitamin D3 + K2, our TOP PICK).

This is one of the more interesting cost dynamics in our catalog. The athlete-tier NSF Sport product (Momentous) actually costs LESS per effective day than the general-tier TOP PICK (Sports Research). The TOP PICK status comes from the K2 MK-7 synergistic addition and oil-softgel bioavailability advantage, not from price. If you are budget-constrained AND need NSF Sport certification, Momentous is mathematically the better deal.

Vitamin D product	Dose	CPED	EDE Score	Verdict
Sports Research D3 + K2	5000 IU + 100 mcg K2	$0.43	90	TOP PICK
Thorne D + K2 Liquid	1000 IU + 200 mcg K2 (per 2 drops)	$0.20	81	BUY
Momentous D3 5000 IU NSF Sport	5000 IU	$0.28	88	BUY (athlete-tier)

Ingredient-by-ingredient analysis

Vitamin D3 (Cholecalciferol)

Dose in this product: 125 mcg (5000 IU) per capsule Clinical effective dose: 2000-5000 IU/day (NIH ODS, Endocrine Society 2011 guideline) Evidence level: Strong Verdict for this ingredient: At top of clinical effective dose range

Cholecalciferol (D3) is the form of vitamin D produced by human skin upon UVB exposure and the form found in animal-source foods. It is preferred over ergocalciferol (D2) for supplementation because D3 raises and maintains serum 25-hydroxyvitamin D more effectively per unit dose, with one head-to-head trial showing approximately 87% greater rise in serum 25(OH)D for D3 versus equivalent D2.⁷

The mechanism by which vitamin D supports testosterone production is not fully resolved but appears to involve at least three pathways: direct expression of vitamin D receptors in Leydig cells (testosterone-producing cells in the testes), upregulation of luteinizing hormone receptor sensitivity, and downstream effects on aromatase activity that modulate the testosterone-to-estradiol ratio.⁸ The Pilz 2011 trial referenced earlier demonstrated significant testosterone elevation in deficient men supplementing 3332 IU/day for 12 months. Subsequent meta-analyses have shown the effect is most pronounced in men with baseline 25(OH)D below 30 ng/mL and minimal in men already replete.

Beyond testosterone, vitamin D supplementation in men 40+ has demonstrated effects on:

• Skeletal muscle function and grip strength (multiple RCTs in older adults).⁹
• Bone mineral density preservation (decades of RCT evidence; combination with K2 enhances effect).
• Immune modulation and respiratory infection risk reduction (Cochrane review 2017 with 25 RCTs and 11321 participants found protective effect against acute respiratory tract infections).¹⁰
• Mood and depression scores in deficient adults (mixed evidence, strongest in winter-deficient northern populations).

The 5000 IU dose Momentous delivers is appropriate for men 40+ with limited sun exposure or known low baseline 25(OH)D. It is not appropriate for men who are already replete (above 50 ng/mL) without periodic blood testing, because excessive serum 25(OH)D above 100 ng/mL can cause hypercalcemia and soft tissue calcification. We recommend baseline 25(OH)D testing before initiating 5000 IU/day supplementation and re-testing at 90 days to confirm therapeutic range without overshoot.

Take this product with a meal containing fat (eggs, salmon, avocado, full-fat dairy, olive oil) to maximize absorption.

PubMed: Pilz S et al. 2011. Effect of vitamin D supplementation on testosterone levels in men.

Community sentiment summary

Phase 1 default sentiment score: 50/100.

DosedWise will publish aggregated Reddit sentiment for Momentous Vitamin D3 5000 IU NSF Sport across r/Testosterone, r/TRT, r/PeterAttia, r/Supplements, and r/Nootropics in Q3 2026 when our Reddit Intelligence layer ships. Until then, this criterion uses a neutral default and represents 5% of the total EDE Score.

Anecdotal user reports on the brand's own product page and on third-party retailer pages skew positive, with common themes including small capsule size, easy daily dosing, and trust in the NSF Sport certification. We do not weight first-party reviews because the fake-review rate on brand-controlled and Amazon listings remains too high to treat them as signal.

[Note: Community sentiment is one signal among seven and is weighted 5% in the EDE Score. See methodology.]

Compared to alternatives

For vitamin D supplementation, here is how Momentous Vitamin D3 5000 IU NSF Sport compares to top alternatives we have scored:

Product	EDE Score	CPED	Verdict
Sports Research Vitamin D3 + K2 (5000 IU + 100 mcg MK-7)	90/100	$0.43	TOP PICK
Momentous Vitamin D3 5000 IU NSF Sport	88/100	$0.28	BUY (athlete-tier)
Thorne Vitamin D + K2 Liquid (1000 IU + 200 mcg per 2 drops)	81/100	$0.20	BUY
Pure Encapsulations Vitamin D3 5000 IU (separate K2 needed)	not yet scored	TBD	TBD
Now Foods Vitamin D3 5000 IU (no K2, no NSF)	not yet scored	TBD	TBD

Three products in the vitamin-d category give us a clean picture of how the tier system works:

• Sports Research D3 + K2 is the TOP PICK because it combines the optimal D3 dose with the K2 MK-7 partner and uses oil-softgel bioavailability. CPED $0.43 reflects the K2 cost.
• Momentous D3 5000 IU NSF Sport is the athlete-tier BUY because it has NSF Certified for Sport credentials but lacks K2 and uses dry-capsule bioavailability. CPED $0.28 is actually below the TOP PICK because there is no K2 component to add cost.
• Thorne D + K2 Liquid is a BUY for users who want flexibility (drop-based dosing lets you titrate from 1000 to 5000 IU based on baseline) and are not sensitive to NSF Sport certification.

See all vitamin-d reviews

Who should buy this

Momentous Vitamin D3 5000 IU NSF Sport is best for:

• Drug-tested athletes (NCAA, NFL, MLB, NBA, USOPC, World Aquatics, World Athletics, NHL, etc.) who require every supplement input to carry NSF Certified for Sport or Informed Sport certification.
• Military service members, federal law enforcement, first responders, and pilots subject to random or scheduled drug testing where supplement contamination is a known career risk.
• Men 40+ with confirmed baseline 25(OH)D below 30 ng/mL who want clean single-ingredient cholecalciferol at the upper clinical dose without an attached K2 partner (typically because K2 is being supplemented separately or contraindicated due to anticoagulant therapy).
• Buyers who prefer brand-direct purchasing from a single quality-controlled operator over mix-and-match cheaper alternatives.
• Stack builders who want every input NSF Sport certified for general quality signaling, not just the high-risk botanicals.

Momentous Vitamin D3 5000 IU NSF Sport is NOT for:

• Men who are not drug-tested and are willing to consider non-NSF alternatives. Sports Research D3 + K2 (TOP PICK 90, CPED $0.43) delivers more total mechanism (K2 MK-7 inclusion) for slightly more money.
• Men on warfarin or other vitamin K antagonist anticoagulants. (D3 alone is fine; this is a note that you should NOT add separate K2 to a stack while on warfarin without physician guidance.)
• Men with confirmed adequate 25(OH)D status (above 50 ng/mL) who do not need 5000 IU daily and would benefit from a 1000-2000 IU maintenance dose instead.
• Men who want vitamin D in a liquid drop format with adjustable dosing. Thorne D + K2 Liquid is the better fit there.
• Men who are strict vegans (Momentous explicitly labels the 5000 IU SKU as not vegan; the 2000 IU SKU is vegan if that constraint matters).

Stacking notes

• Take with the largest fat-containing meal of the day. Cholecalciferol absorption is approximately 32% higher with dietary fat versus fasted state.
• Consider pairing with a separate K2 MK-7 supplement (90-180 mcg/day) if you are not already getting K2 from a multivitamin or other source. Critical for long-term high-dose D3 users.
• Magnesium is a required cofactor for vitamin D activation in the kidney and liver. If you are deficient in magnesium, vitamin D supplementation will be partially blunted. Pairing with a magnesium glycinate or threonate stack is logical.
• Boron at 6-10 mg/day enhances vitamin D status and bioavailability per published research; if you already supplement boron for testosterone support, the synergy is convenient.
• Do not combine with high-dose calcium supplementation without K2 if you have known cardiovascular calcification risk. The Rotterdam Study and follow-up cohorts suggest unbalanced calcium plus D3 (without K2) may worsen arterial calcification.⁵
• Cycling not required. Vitamin D supplementation is a long-term intervention. Re-test serum 25(OH)D every 90-180 days to maintain optimal range (40-60 ng/mL) without overshooting.

Better alternatives

If Momentous Vitamin D3 5000 IU NSF Sport does not fit your needs:

1. Sports Research Vitamin D3 + K2 (EDE 90/100, CPED $0.43): TOP PICK in vitamin-d category. Includes 100 mcg K2 MK-7 and uses oil-softgel form. Best general-buyer option.
2. Thorne Vitamin D + K2 Liquid (EDE 81/100, CPED $0.20): Liquid drops with adjustable dosing from 1000 to 5000 IU. Good for users who titrate based on baseline status. Lowest CPED in category.
3. Momentous Vitamin D3 2000 IU NSF Sport (lower-dose version of this product): Same brand, same NSF Sport certification, includes built-in EVOO for absorption, vegan. Best fit for users with adequate baseline 25(OH)D who only need maintenance dosing.

Frequently asked questions

Is Momentous Vitamin D3 5000 IU NSF Sport worth buying?

If you are a drug-tested athlete or value NSF Certified for Sport on every input, yes. EDE 88/100, $0.28 CPED, single ingredient transparency, every batch tested for 290 WADA-banned substances. If you are not drug-tested, our category TOP PICK (Sports Research D3 + K2 at EDE 90) gives you K2 MK-7 included for slightly higher CPED ($0.43).

What is the best dose of vitamin D3 for men 40+?

NIH Office of Dietary Supplements guidance is 2000-5000 IU/day for adults with limited sun exposure. The Endocrine Society 2011 clinical practice guideline allows up to 10000 IU/day for adults treating documented deficiency under physician supervision. Most men 40+ with baseline 25(OH)D below 30 ng/mL benefit from 4000-5000 IU/day initially, transitioning to 2000-3000 IU/day maintenance once serum levels reach 40-60 ng/mL.⁴

Does Momentous Vitamin D3 really boost testosterone?

The literature supports a modest testosterone increase in men with baseline 25(OH)D below 30 ng/mL who supplement vitamin D3 to repletion. The Pilz 2011 RCT showed approximately 25% increase in total testosterone after 12 months at 3332 IU/day in deficient men.³ Effects in already-replete men are minimal. This product does not "boost" testosterone in any pharmacologic sense; it corrects a deficiency that, when present, suppresses testosterone production.

Is Momentous third-party tested?

Yes. Every batch of Momentous Vitamin D3 is NSF Certified for Sport. NSF Sport certification verifies label accuracy, contamination screening for heavy metals and harmful additives, and absence of 290 WADA-banned substances. The product is listed in the NSF Sport certified products database.

How does Momentous Vitamin D3 compare to Sports Research D3 + K2?

Sports Research D3 + K2 is our category TOP PICK (EDE 90/100, CPED $0.43). It includes 100 mcg K2 MK-7 and uses oil-softgel bioavailability. Momentous Vitamin D3 5000 IU NSF Sport is the athlete-tier BUY (EDE 88/100, CPED $0.28). It carries NSF Certified for Sport credentials that Sports Research does not, but lacks K2 and uses dry-capsule form. For drug-tested athletes, Momentous is the right pick. For general buyers who want maximal mechanism, Sports Research is the right pick.

Why is Momentous more expensive than Now Foods or generic Amazon vitamin D3?

You are paying for NSF Certified for Sport batch testing (approximately $50000-100000 per product per year in maintenance fees passed through), tighter raw material sourcing, and the brand reputation premium. If you do not need NSF Sport certification, generic Now Foods or Nature Made D3 5000 IU runs $0.05-0.10 per effective day. The premium here is paying for the certification, not the cholecalciferol itself.

Can I take Momentous Vitamin D3 every day long-term?

Yes, with two caveats. First, get a baseline 25(OH)D blood test and re-test every 90-180 days to confirm you remain in optimal range (40-60 ng/mL) without overshooting toward 100+ ng/mL where hypercalcemia risk increases. Second, pair with K2 MK-7 (separately) and ensure adequate magnesium intake to support proper vitamin D activation and calcium routing.

Should I take this with food?

Yes. Take with the largest fat-containing meal of the day. Cholecalciferol absorption increases approximately 32% with dietary fat versus fasted state.⁶ The 5000 IU version of Momentous D3 does not include a built-in fat source unlike the 2000 IU EVOO version, so meal pairing is important for this specific SKU.

Where to buy

• Brand-direct (Momentous): $16.95 per 60-serving bottle. Subscription discount available. livemomentous.com
• Amazon: $14.41 with Subscribe and Save (15% off) or $16.95 one-time. Amazon listing
• Specialty retailers: Vitamin Shoppe, Vitacost, Natural Healthy Concepts, the Feed, Recovery for Athletes.

We recommend brand-direct or Amazon Subscribe and Save for the cleanest supply chain. Momentous does not currently list on iHerb as of publication date.

Final verdict

BUY (athlete-tier). EDE Score 88/100. CPED $0.28 per effective day.

Momentous Vitamin D3 5000 IU NSF Sport is the right vitamin D for drug-tested athletes, military, first responders, and stack builders who want NSF Certified for Sport on every input. Single ingredient cholecalciferol at the top of the clinical effective range, every batch tested, $0.28 per effective day. No proprietary blend, no marketing fluff, no compliance risk.

It is not the category TOP PICK because it lacks K2 MK-7 and uses dry-capsule bioavailability rather than oil-softgel. For general buyers who do not need NSF Sport certification specifically, our TOP PICK (Sports Research Vitamin D3 + K2 at EDE 90, CPED $0.43) delivers more total mechanism for slightly more money.

If you decide to buy Momentous Vitamin D3 5000 IU NSF Sport:

• Buy brand-direct on livemomentous.com (paid link)
• Buy on Amazon (paid link)

If you would rather try the higher-scoring alternative:

• Sports Research Vitamin D3 + K2 review (EDE 90/100, TOP PICK, CPED $0.43)

Methodology and disclosures

This review uses the DosedWise Methodology v1.0. The EDE Score formula is:

EDE Score = 
  (Dose Efficacy * 0.30) +
  (Bioavailability * 0.20) +
  (Third-Party Testing * 0.15) +
  (Label Transparency * 0.15) +
  (Manufacturer Reputation * 0.10) +
  (Community Sentiment * 0.05) +
  (Price Per Effective Dose * 0.05)

DosedWise earned no payment from Momentous for this review. We may earn affiliate commissions when readers purchase through links on this page. These commissions never influence scoring. Read our editorial policy.

This article is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement, especially if you have a medical condition, take prescription medications (particularly anticoagulants), or are pregnant or nursing.

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.

References

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Published: 2026-05-04 Last reviewed: 2026-05-04 Author: DosedWise Editorial Team

Footnotes

1. Forrest KY, Stuhldreher WL. Prevalence and correlates of vitamin D deficiency in US adults. Nutrition Research. 2011;31(1):48-54. PubMed PMID: 21310306. ↩

2. Holick MF. Vitamin D deficiency. New England Journal of Medicine. 2007;357(3):266-281. PubMed PMID: 17634462. ↩

3. Pilz S, Frisch S, Koertke H, et al. Effect of vitamin D supplementation on testosterone levels in men. Hormone and Metabolic Research. 2011;43(3):223-225. PubMed PMID: 21154195. ↩ ↩²

4. Holick MF, Binkley NC, Bischoff-Ferrari HA, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. Journal of Clinical Endocrinology and Metabolism. 2011;96(7):1911-1930. PubMed PMID: 21646368. ↩ ↩²

5. Geleijnse JM, Vermeer C, Grobbee DE, et al. Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. Journal of Nutrition. 2004;134(11):3100-3105. PubMed PMID: 15514282. ↩ ↩²

6. Dawson-Hughes B, Harris SS, Lichtenstein AH, et al. Dietary fat increases vitamin D-3 absorption. Journal of the Academy of Nutrition and Dietetics. 2015;115(2):225-230. PubMed PMID: 25441954. ↩ ↩²

7. Tripkovic L, Lambert H, Hart K, et al. Comparison of vitamin D2 and vitamin D3 supplementation in raising serum 25-hydroxyvitamin D status: a systematic review and meta-analysis. American Journal of Clinical Nutrition. 2012;95(6):1357-1364. PubMed PMID: 22552031. ↩

8. Wehr E, Pilz S, Boehm BO, et al. Association of vitamin D status with serum androgen levels in men. Clinical Endocrinology. 2010;73(2):243-248. PubMed PMID: 20050857. ↩

9. Beaudart C, Buckinx F, Rabenda V, et al. The effects of vitamin D on skeletal muscle strength, muscle mass, and muscle power: a systematic review and meta-analysis of randomized controlled trials. Journal of Clinical Endocrinology and Metabolism. 2014;99(11):4336-4345. PubMed PMID: 25033068. ↩

10. Martineau AR, Jolliffe DA, Hooper RL, et al. Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data. BMJ. 2017;356:i6583. PubMed PMID: 28202713. ↩