What are the best vitamin D supplements?
Vitamins & SupplementsNamed in 3 of 6 answers
#6
24.5
Rank by surface
Microsoft Copilot#2
Claude#3
Google AI Mode#4
Microsoft Copilot#2Claude#3Google AI Mode#4Brand profile
NOW Foods Vitamin D3
A Vitamin D3 supplement from NOW Foods, a natural products company founded in 1968, offering various potencies for immune and bone support.
1 questions · 1 categories · As of Nov 1, 2026
- Questions
- 1
- 1 categories
- Answers naming it
- 3/6
- Of the answers measured on this brand's questions
Visibility by category
| Categories | Category rank | Questions | Score |
|---|---|---|---|
| Vitamins & Supplements | - | 1 | 24.5 |
Ranking by question
Sources cited when this brand is named
Sites the answers naming this brand cited in the last four weeks. Counts are citing answers.
The answers that named this brand cited no sources in the last four weeks.
Named by surface, by question
For the brand's best questions: of each surface's 1 answers, how many named it.
| Questions | Google AI Overviews |  ChatGPT | Claude |  Gemini | Google AI Mode | Microsoft Copilot |
|---|---|---|---|---|---|---|
| 1What are the best vitamin D supplements? | 0 | 0 | 1 | 0 | 1 | 1 |