AG Vitamin D3+K2
How we scored this product Show the full breakdown
Bevisning gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Säkerhet caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
Question 1
Does the molecule work?
Does the molecule work?
The science behind each active ingredient, independent of which brand sells it.
Cheap, safe, and correcting a deficiency you probably have.
Vitamin D3's essential partner, directs calcium to bones instead of arteries.
Question 2
Is this bottle good?
Is this bottle good?
The specific product: dose, price, transparency, and what buyers report.
Question 3
What's the catch?
What's the catch?
Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.
Quick verdict
The numbers
Data verification
Per-ingredient breakdown
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.
What's inside
Consumer signals
Consumer signals gathered from 3 platforms.
Medium confidenceneutral sentiment
Amazon listing exists (ASIN B0CPBL4538) but is currently unavailable for direct purchase. Reviews limited. Product is primarily sold via drinkag1.com membership. Verified 2026-08-07.
1 threads discussed · neutral sentiment
Compiled from Reddit r/Supplements discussions located during research; not independently re-verified against the live page at build time.
8,732 reviews · 3.6/5 · mixed sentiment
Trustpilot rating is brand-level (AG1/ Athletic Greens), not specific to D3+K2 product. Verified 2026-08-07 at https://www.trustpilot.com/review/drinkag1.com.
These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.
What others say (unverified)
No external reviews aggregated yet for this product.
Research behind this product
The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.
Redaktionellt notes
NSF Certified for Sport. Liquid drops with 600 portioner per bottle. Vitamin D3 from lichen, K2 as MK4+MK7. Exclusively available to AG1 members. Very low cost per portion at $0.05.
Why this scored this way
This AG1 (Athletic Greens) AG Vitamin D3+K2 scores 7.0, making it a mid-tier product with both strengths and weaknesses. It delivers 0.025mg of Vitamin D3 (50% of the 0.05mg trial dose) with grade A evidence (strong human trial data). At $0.10/day it's priced well for what you get.
What drives the score up
- Dose-evidence score of 7.2 shows decent alignment with trial doses.
- Value score of 10.0 at $0.10/day.
- Vitamin D3 has grade A evidence and is dosed at 50% of the trial dose.
What drags it down
- No public analysintyg available for independent verification.
- Quality transparency of 6.0 is below the site average.
- Limited consumer feedback (community score: 6.0).
Why you'd choose it
- You want good value at $0.10/day.
- You want Vitamin D3 from a AG1 (Athletic Greens) product.
- You want a tested by independent lab product.
Why you might skip it
- You want a product with a publicly available CoA.
- You want stronger transparency (this scores 6.0).
Where this sits
Spot an error?
If you are the manufacturer or brand owner of AG Vitamin D3+K2 and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
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