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Nutrition Reviews

Head to head · Vitamins & Minerals

Nature Made Vitamin D3 2000 IU Softgels vs Tru Niagen Nicotinamide Riboside 300 mg

Nature Made scores higher overall (9.0 vs 6.6 out of 10) and leads on four of the five factors we score.

Updated November 2026 from our full reviews · How we score

Higher score
Front of Nature Made Vitamin D3 2000 IU 250-softgel bottle
Nature MadeVitamin D3 2000 IU Softgels
9.0
Excellent

A USP Verified 2,000 IU vitamin D3 softgel in soybean oil for about 6 cents a day, the no-frills benchmark for daily vitamin D.

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Front of the Tru Niagen 300 mg bottle of 30 vegetarian capsules
Tru NiagenNicotinamide Riboside 300 mg
6.6
Mixed

A rigorously tested nicotinamide riboside capsule that reliably raises NAD+, though trials in healthy adults show few clear health benefits for $1.63 a day.

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The short answer

Choose Nature Made if…

  • Adults with limited sun exposure
  • Budget shoppers who want USP verification
  • People who prefer a small, easy-to-swallow softgel
  • You care most about efficacy, value, experience, transparency

Choose Tru Niagen if…

  • Adults who want the most-studied, NSF-certified form of nicotinamide riboside
  • People curious about NAD+ who accept that the benefits are unproven
  • Drug-tested athletes who need a certified product

Key differences

Biggest scoring gap
Value: Nature Made 9.8, Tru Niagen 4.5. This factor covers cost per effective serving compared with category peers.
Independent testing
Nature Made carries USP Verified; Tru Niagen carries NSF Certified for Sport.
Formula
Of the key ingredients in our reviews, only Nature Made lists vitamin D, and only Tru Niagen lists magnesium.
Format
Nature Made: softgel, 250 servings per container; Tru Niagen: capsule, 30 servings per container.
Dietary labels
Only Tru Niagen is labeled vegetarian.

Side by side

Vitamin D3 2000 IU SoftgelsNicotinamide Riboside 300 mg
Our score9.0 / 106.6 / 10
Efficacy (30%)8.65.5
Quality & Purity (25%)9.09.0
Value (20%)9.84.5
Experience (15%)9.07.5
Transparency (10%)9.06.5
FormSoftgelCapsule
Serving1 softgel250 servings per container1 vegetarian capsule30 servings per container
Price per servingSee retailer$1.63
Testing & certifications
USP Verified
NSF Certified for SportKosherHalalcGMP facility
DietaryGluten-freeVegetarian, Gluten-free
Key ingredients
  • Vitamin D3 (as cholecalciferol)50 mcg (2,000 IU)
  • Soybean oil (carrier)
  • Niagen (nicotinamide riboside chloride)300 mg
  • Microcrystalline cellulose, hypromellose capsule, vegetable magnesium stearateNot disclosed
Flavors——
Creator video reviews44

Pros and cons

Vitamin D3 2000 IU Softgels

  • USP Verified for ingredients, potency and manufacturing
  • 2,000 IU of D3 is half the adult upper limit
  • About $0.06 per day
  • Gelatin shell, so not vegetarian
  • Soybean oil base may not suit people avoiding soy-derived ingredients
All 7 pros and cons

Nicotinamide Riboside 300 mg

  • NSF Certified for Sport and third-party tested by Alkemist Labs
  • 300 mg raised blood NAD+ about 51% in a controlled trial
  • Single patented ingredient with an FDA GRAS letter and two NDI notifications
  • Trials in healthy adults show few consistent health benefits
  • Marketing leans on a six-person NMN comparison and broad "cellular energy" language
All 8 pros and cons

Our verdict: Nature Made vs Tru Niagen

Nature Made is the stronger product overall, 9.0 to 6.6 in our scoring, ahead on efficacy, value, experience and transparency. If you are tested for banned substances, choose Tru Niagen: it is the one with NSF Certified for Sport. Each full review shows the evidence, testing and buyer feedback behind these scores.

Full Vitamin D3 2000 IU Softgels review Full Nicotinamide Riboside 300 mg review

What creators say

Questions people ask

Is Nature Made better than Tru Niagen?
In our scoring, Nature Made Vitamin D3 2000 IU Softgels rates higher overall (9.0 vs 6.6 out of 10). Nature Made leads on efficacy, value, experience and transparency. Scores weigh efficacy, quality, value, experience and transparency.
Are Nature Made and Tru Niagen third-party tested?
Nature Made carries USP Verified; Tru Niagen carries NSF Certified for Sport. Sport-level certifications screen for banned substances, which matters for drug-tested athletes.
Who should choose Nature Made over Tru Niagen?
Our reviews suggest Nature Made is best for adults with limited sun exposure, budget shoppers who want USP verification and people who prefer a small, easy-to-swallow softgel, while Tru Niagen is best for adults who want the most-studied, NSF-certified form of nicotinamide riboside, people curious about NAD+ who accept that the benefits are unproven and drug-tested athletes who need a certified product.
What is the difference between Nature Made and Tru Niagen?
Nature Made carries USP Verified; Tru Niagen carries NSF Certified for Sport. Of the key ingredients in our reviews, only Nature Made lists vitamin D, and only Tru Niagen lists magnesium. Nature Made: softgel, 250 servings per container; Tru Niagen: capsule, 30 servings per container.

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