Best Vitamin D Supplements
Top picks for bone health & immunity
Vitamin D is essential for bone health, immune function, and mood regulation. With so many options on the market, choosing the right supplement can be overwhelming. We've analyzed dozens of products based on form, dosage, third-party testing, and value to bring you the top picks for 2026.
What We Look For
- Form of Vitamin D (D3 preferred over D2)
- Third-party testing and certification
- Dosage options (1000-5000 IU)
- Added ingredients for absorption (K2, fat)
- Price per serving
Our Top Picks
Vitamin D3 5000 IU
Best Overall - Great value with organic olive oil for absorption
✓ Pros
- •5000 IU per softgel
- •Organic olive oil carrier
- •Non-GMO verified
- •360 count bottle
✗ Cons
- •High dose may not suit everyone
- •Softgel only
Vitamin D3 + K2
Best with K2 - Synergistic formula for bone health
✓ Pros
- •Includes K2 for calcium absorption
- •Coconut oil carrier
- •Third-party tested
✗ Cons
- •Higher price point
- •Only 60 softgels
Vitamin D3 2000 IU
Best Budget - Quality at an affordable price
✓ Pros
- •Affordable
- •240 softgels
- •Moderate 2000 IU dose
✗ Cons
- •No added K2
- •Basic formula
Our Verdict
For most people, we recommend NatureWise Vitamin D3 5000 IU for its excellent combination of quality, value, and absorption. If you want the added benefit of K2 for bone health, Sports Research is worth the extra cost. For those on a budget, NOW Foods delivers reliable quality at an unbeatable price.