Doctor's Best Vitamin D3 5000 IU (720 Softgels)
by Doctor's Best
"5000 IU D3 for 720 servings (2-year supply) at $0.03/day — the ultimate bulk vitamin D3 with 32,000+ reviews"
Overview
Doctor's Best Vitamin D3 5000 IU 720ct provides 125mcg of cholecalciferol per softgel in olive oil for optimal fat-soluble absorption. The 720-softgel count provides a full 2-year supply at one softgel daily, making this the most cost-effective D3 supplement on the market at approximately $0.03 per day. The olive oil base (rather than soybean oil) provides a cleaner carrier fat. Doctor's Best is a science-based supplement brand founded in 1990 by a physician. The 32,000+ reviews with a 4.7 average rating make this one of the highest-rated D3 supplements on Amazon.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Vitamin D3 (Cholecalciferol) | 5000 IU (125 mcg) |
| Olive Oil | Base |
2 ingredients linked to detailed encyclopedia profiles
Pros & Cons
What We Like
- 720 softgels (2-year supply)
- 32,000+ reviews
- $0.03/day
- Olive oil base
- 4.7 average rating
What Could Be Better
- No K2 included
- Lanolin-derived (not vegan)
- 5000 IU may be high for some
- Large bottle
Who Is This For?
Best For
- Long-term D3 supplementation
- Budget seekers
- Those wanting 2-year supply
- Vitamin D deficiency
Not Ideal For
- Those wanting D3+K2 combo
- Vegans
- Those with adequate D levels
- Those wanting smaller bottle
Our Verdict
Doctor's Best D3 5000 IU 720ct is the ultimate bulk D3 — 2 years of vitamin D3 for under $22 at $0.03/day. The 32,000+ reviews and 4.7 rating make this the most trusted bulk D3; pair with K2 for optimal calcium metabolism.
Alternatives to Consider
No direct alternatives listed for this product yet.