Data as of Aug 25, 2026 · Based on 2,435 AI responses · See how Parse measures this
Vitamins & Dietary Supplements
Parse
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Thorne has firmly established itself as the leading brand recommended by AI assistants for vitamins and supplements. Since December 2025, there has been a significant consolidation in AI recommendations, with brands like , , and increasingly dominating conversations across a range of supplement categories.
| # | Brand | What AI says | Mention rate |
|---|---|---|---|
| 1 | A reliable and budget-friendly choice, particularly for women's multivitamins and Vitamin D. | 47% | |
| 2 | Frequently recommended for quality, especially for berberine and curcumin supplements. | 34% | |
| 3 | 28% | ||
| 4 | Gained prominence for its Vitamin D3 + K2 and Turmeric formulas. | 25% | |
| 5 | A top choice for women's multivitamins with traceable, clean ingredients. | 17% | |
| 6 | Often cited for its balance of good value and quality across multiple categories. | 17% | |
| 7 | The top AI recommendation for organic and whole-food-based supplements. | 17% | |
| 8 | 14% | ||
| 9 | Positioned as the classic, affordable choice for a broad-spectrum multivitamin. | 13% | |
| 10 | 12% | ||
| 11 | 11% | ||
| 12 | Frequently cited for its high-purity, hypoallergenic supplement formulations. | 11% | |
| 13 | 10% | ||
| 14 | 9% | ||
| 15 | 7% | ||
| 16 | 7% | ||
| 17 | 6% | ||
| 18 | 6% | ||
| 19 | 6% | ||
| 20 | 5% | ||
| 21 | 5% | ||
| 22 | 5% | ||
| 23 | A top choice for women's multivitamins with traceable, clean ingredients. | 5% | |
| 24 | 5% | ||
| 25 | 5% |
Who wins on each AI
The same market, seen by two models.
Sources AI cited
healthline.com is the page AI reaches for most here, cited in 59% of analyzed answers.
Became a top contender after November 2025, rising from #4 to #2 overall.
“Early responses focused on nutrient types (e.g., Folate) and cited health agencies.” → “Later responses directly recommend commercial brands like Ritual, Centrum, and Olly.”
Emerged as a top-five multivitamin choice from December 2025 onward.
Fell from the top 10 as AI shifted to recommending finished products over ingredients.
| Brand | ChatGPT Search | Google AI Mode | Comparison |
|---|---|---|---|
| 28% | 65% | ||
| 40% | 48% | ||
| 26% | 42% | ||
| 22% | 35% | ||
| 9% | 30% |
The two models disagree most about USP–NF (ChatGPT #10, Google #25) and Life Extension (ChatGPT #5, Google #18).
Thorne has firmly established itself as the leading brand recommended by AI assistants for vitamins and supplements. Since December 2025, there has been a significant consolidation in AI recommendations, with brands like Thorne, Nature Made, and NOW Foods increasingly dominating conversations across a range of supplement categories.
Across 2,435 AI responses, Nature Made is mentioned most, named in 47% of them, followed by Thorne (34%) and Nordic Naturals (28%).
Parse measures each brand's mention rate — the share of answers naming it — across 2,435 AI responses to this market's buyer questions. Answers are collected daily and the ranking is published weekly.
Brands enter the ranking when AI answers mention them. Parse collects answers daily and publishes the re-measured set weekly, so new brands appear as AI starts recommending them.
Recommendations for Vitamin D supplements have consistently featured Nature Made,
Sports Research, and
Thorne.
Sports Research became particularly dominant from January to March 2026, often praised for its D3 + K2 formula.
What is the best vitamin D supplement?
Recommendations for Vitamin D supplements have consistently featured Nature Made,
Sports Research, and
Thorne.
became particularly dominant from January to March 2026, often praised for its D3 + K2 formula.
Centrum and
Nature Made are consistently the top two recommendations for a general multivitamin, often positioned as affordable and reliable choices. and are also frequently mentioned as high-quality or specialized alternatives.
Brands mentioned
Brands mentioned
What is the best multivitamin?
Centrum and
Nature Made are consistently the top two recommendations for a general multivitamin, often positioned as affordable and reliable choices.
Ritual and
Thorne are also frequently mentioned as high-quality or specialized alternatives.