**Vitamin D3** at 2,000 IU per softgel — solidly within the clinically studied range of 1,000–5,000 IU/day for supporting bone density, immune function, and mood. The form is cholecalciferol, which your body can use directly without conversion, and the olive oil base in each softgel provides the fat needed to absorb this fat-soluble vitamin effectively.

At 2,000 IU, you're comfortably above the conservative RDA of 600 IU and well below the 4,000 IU upper limit, making this a safe daily dose for long-term use without the need for regular blood monitoring. The 180-count bottle gives you a full six months at one softgel per day.

If you're actively correcting a deficiency or you get very little sun exposure, 2,000 IU may not be enough — many practitioners recommend 4,000–5,000 IU in those situations. For general maintenance in someone with moderate sun exposure, this dose is a reasonable starting point.

BioStacks
Doctor's Best

Vitamin D3 2000 IU

Capsule · 1 Softgel · 180 servings

iHerbAmazon
Track this supplement · Get started free

What it does

Vitamin D

Mixed formsGrade —

Supports calcium absorption and the maintenance of normal bones.

ImmuneDentalBone & Joint
Ask AI about this product

Ingredients (1)

Other ingredients

Extra Virgin Olive OilCarrier

Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients

SoftgelCapsule

One-piece gelatin capsule shell with a plasticizer (typically glycerin), used to encapsulate liquid or oil-based supplements

Lab testing

How to take it

With a meal containing fat

On the label

Suggested Adult Use: Take 1 softgel daily with food, or as recommended by a nutritionally informed physician.

Price check

$8.99

$10$20

Cheaper than 86% of 552 vitamin D supplements

Similar products

D3000 Vitamin D Daily Oral Spray

BetterYou

D3000 Vitamin D Daily Oral Spray

🛡️ for Immune

95
D400 Infant Vitamin D Daily Oral Spray

BetterYou

D400 Infant Vitamin D Daily Oral Spray

🛡️ for Immune

95
Vitamin D3 3000 IU

Zahler

Vitamin D3 3000 IU

🛡️ for Immune

95
Vitamin D3 2500 IU (62.5 mcg)

Carlson

Vitamin D3 2500 IU (62.5 mcg)

🛡️ for Immune

94
Vitamin D3 62.5 mcg 2,500 IU

Country Life

Vitamin D3 62.5 mcg 2,500 IU

🛡️ for Immune

94

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • Manifesto
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.