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What's the best vitamin C supplement?

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
31K
CPC
$0.35
Total est. value / mo
$668
Common ways people ask this (12)
  • Which vitamin C supplement should I take for immune support?
  • Which vitamin C supplement should I take for skin health?
  • Which vitamin C supplement should I take for daily use?
  • Which vitamin C supplement should I take for a sensitive stomach?
  • Which vitamin C supplement should I take if I want buffered vitamin C?
  • Which vitamin C supplement should I take if I want liposomal vitamin C?
  • Which vitamin C supplement should I take for a chewable form?
  • Which vitamin C supplement should I take for a capsule form?
  • Which vitamin C supplement should I take for a powder form?
  • Which vitamin C supplement should I take for a budget option?
  • Which vitamin C supplement should I take with zinc?
  • Which vitamin C supplement should I take for higher potency?

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 4/5 615 $215
2 webmd.com 3/5 369 $129
3 naturemade.com 5/5 246 $86
4 nowfoods.com 5/5 169 $59
5 solgar.com 5/5 123 $43
6 consumerlab.com 3/5 92 $32
7 mayoclinic.org 3/5 68 $23
8 medlineplus.gov 3/5 52 $18
9 gardenoflife.com 4/5 40 $13
10 swansonvitamins.com 5/5 31 $10
11 vitaminshoppe.com 2/5 25 $8
12 centrum.com 4/5 18 $6
13 verywellhealth.com 3/5 15 $5
14 nih.gov 2/5 12 $4
15 thorne.com 3/5 9 $3
16 drugs.com 2/5 8 $2
17 mountsinai.org 2/5 6 $2
18 pureencapsulations.com 3/5 5 $1
19 amazon.com 5/5 4 $1
20 livestrong.com 2/5 3 $1
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 →