Dr. Berg Nutritionals Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000
IU | Naturally Derived D3 | 4X Lab-Tested & Verified | High Absorption Formula | K2 D3 Vitamin Supplement |…
Price as of 2026-06-19. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Risk-averse buyers — 25,751+ reviews give a highly reliable picture
- •Top 4% bestseller in vitamins — proven market demand
- •Sports Research ® Vitamin D3 4000 IU offers a better rating (4.8/5) at a similar or lower price ($18)
- •Nature's Bounty Nature’s Bounty Vitamin C + Rose Hips — 58% cheaper at $7 (Score A+)
- •Sports Research ® Vitamin D3 4000 IU — higher rated at 4.8/5 ($18)
📊 Based on data analysis of 147 products in this category.
Mubboo Score: A-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other vitamins
Computed from live Amazon rating, review count, and price across 147 vitamins · last refreshed 2026-06-19.
How It Compares
This Product Dr. Berg Nutritionals Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 | Most Popular Goli Apple Cider Vinegar Gummies | Best Rated Sports Research ® Vitamin D3 4000 IU | Best Value Nature's Bounty Nature’s Bounty Vitamin C + Rose Hips | |
|---|---|---|---|---|
| Price | $17.99 | $28.80 | $17.95 | $7.49 |
| Rating | 4.7/5 | 4.4/5 | 4.8/5 | 4.8/5 |
| Reviews | 25,751 | 368,604 | 71,411 | 49,300 |
| Mubboo Score | A- | A- | A | A+ |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Prioritize supplements with clean ingredient panels and a form you enjoy taking, like gummies or small softgels, to maintain consistency. For nootropic formulas, start with one capsule with food to gauge tolerance, and allow several weeks for full benefits.
- Great Taste / No Unpleasant Flavor
- Convenient and Easy to Take
- Noticeable Health Benefits
- Clean Ingredient Profile
- Trusted Brand Reliability
- Side Effects / Adverse Reactions
- Delayed or Insufficient Results
- Cost / Supply Concerns
Related Video Reviews
- 📹 The Supplements That ACTUALLY WORK — Dr. Eric Berg DC
- 📹 Top 5 Supplements for Longevity, Performance, and Overall Health — Quinn Stillson MD
- 📹 Doctor Reveals the ONLY 6 Supplements Worth Your Money! — Doctor Youn
About Dr. Berg Nutritionals
- 19 products in our database
- Average rating: 4.6/5 across all products
- Price range: $17.99 – $47.99
- Categories: Ashwagandha Supplements, Collagen Supplements, Electrolyte Supplements, glandular-extracts, Greens Powders, hair-treatment-oils
Other vitamins
Bottom Line
Dr. Berg Nutritionals Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 earns Mubboo Score A-. Priced at $18 — a mid-range option, below the category average of $27. Rated 4.7/5 from 25,751+ reviews. Strong buy if: risk-averse buyers, top 4% bestseller in vitamins. Skip if: sports research ® vitamin d3 4000 iu offers a better rating (4.8/5) at a similar or lower price — Goli Apple Cider Vinegar Gummies (Score A-, $29) may fit better.
Frequently Asked Questions
Is the Dr. Berg Nutritionals Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.7/5 rating from 25,751 reviews — better than 76% of vitamins we track.
How much does the Dr. Berg Nutritionals Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 cost?
It is currently $17.99 — mid-tier pricing for vitamins.
How does the Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 compare to other vitamins?
The category's most-reviewed alternative is the Goli Apple Cider Vinegar Gummies (4.4/5, 368,604 reviews, $28.80). The Dr. Berg Maximum Strength 7-in-1 Vitamin D3 K2 5000 carries a Mubboo Score of A- vs A-.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-19) and may change.