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What's the best vitamin D3 K2?

A commercial recommendation prompt. We size how many people ask ChatGPT this from real search demand, then run it through ChatGPT to see which websites it recommends.

Est. people asking / mo
25K
CPC
$0.23
Total est. value / mo
$358
Common ways people ask this (15)
  • Which is the best vitamin D3 K2 supplement for adults?
  • Which is the best vitamin D3 K2 supplement for seniors?
  • Which is the best vitamin D3 K2 supplement for women?
  • Which is the best vitamin D3 K2 supplement for men?
  • Which is the best vitamin D3 K2 supplement for kids?
  • Which is the best vitamin D3 K2 supplement for bone health?
  • Which is the best vitamin D3 K2 supplement for immune support?
  • Which is the best vitamin D3 K2 supplement with high potency?
  • Which is the best vitamin D3 K2 supplement with low dosage?
  • Which is the best vitamin D3 K2 supplement in capsules?
  • Which is the best vitamin D3 K2 supplement in liquid form?
  • Which is the best vitamin D3 K2 supplement that is vegan?
  • Which is the best vitamin D3 K2 supplement that is organic?
  • Which is the best budget vitamin D3 K2 supplement?
  • Which is the best vitamin D3 K2 supplement with third-party testing?

What ChatGPT actually answered

One of the 5 times we asked ChatGPT this, verbatim. The leaderboard below aggregates all 5 runs.

Websites ChatGPT recommends for this prompt

Aggregated across 5 runs (min 2/5 appearances). Estimated visits split the prompt's demand by rank. Sites matching the prompt's own brand are marked branded and excluded from the leaderboard.

RankWebsiteAppearsEst. visits / moEst. value / mo
1 healthline.com 5/5 503 $115
2 webmd.com 5/5 302 $69
3 nih.gov 5/5 201 $46
4 mayoclinic.org 5/5 138 $31
5 medicalnewstoday.com 4/5 101 $23
6 verywellhealth.com 3/5 75 $17
7 thorne.com 3/5 55 $12
8 nowfoods.com 2/5 43 $9
9 mountsinai.org 3/5 33 $7
10 naturemade.com 3/5 25 $5
11 solgar.com 2/5 20 $4
12 consumerlab.com 4/5 15 $3
13 gardenoflife.com 3/5 13 $2
14 pureencapsulations.com 3/5 10 $2
15 amazon.com 3/5 8 $1
16 clevelandclinic.org 3/5 6 $1
17 nccih.nih.gov 2/5 5 $1
18 iherb.com 3/5 4 $0
19 lifeextension.com 3/5 3 $0
20 drugs.com 2/5 3 $0
How is this estimated?

ChatGPT doesn't publish prompts, so we don't show logged conversations. We measure real demand for this topic from Google search volume, scale it to ChatGPT's user base (on average about 1 ChatGPT user for every 8 Google searchers, a ratio that varies by topic), and run the prompt through ChatGPT 5 times to record which websites it recommends and in what order. Estimated visits split that demand across the recommended sites by a click-through-by-rank curve. Every number is a modeled estimate, not measured analytics. Full methodology →