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YouTube was the most frequently cited website in Google AI Overviews across a panel of vitamin and supplement searches, according to new research：https://searcherries.com/youtube-google-ai-overviews-vitamins-supplements. The video platform appeared in 186 of 350 AI-generated answers, or 53.1%, making it the only website cited in more than half of the answers collected.
Searcherries followed 50 searches daily from August 30 to September 5, 2026. The questions came from Google Autocomplete and covered topics including hair growth, energy, sleep, anxiety and weight loss. Every search produced an AI Overview, the AI-generated summary that Google displays alongside its search results.
GoodRx was the second most frequently cited website, appearing in 48.3% of answers. Healthline followed at 28.6%, Cleveland Clinic at 28.0%, and the National Institutes of Health domain, nih.gov, at 25.1%. Websites were ranked by the number of answers citing them, with each website counted only once per answer.
YouTube’s presence extended across 44 of the 50 queries. It was particularly prominent in the group beginning with “vitamins for,” appearing in 78.6% of those answers. Across the full panel, YouTube appeared almost twice as often as Healthline.
The research also found that AI Overviews frequently cited pages outside the recorded organic results. Only 32.4% of cited pages appeared in the organic listings collected for the same search; 67.6% did not. Matching by website instead of exact page raised the overlap to 52.5%, showing that some AI citations pointed to a different page on a website already present in organic search.
Individual answers were less consistent than the overall leaderboard. For “supplements for weight loss,” nih.gov appeared every day and YouTube appeared on six of seven days, while other websites moved in and out. By contrast, “supplements to help with glp-1 side effects” returned the same cited pages throughout the week.
Searcherries：https://searcherries.com/ monitored a fixed set of 50 Google Autocomplete queries once daily using US English desktop results configured for New York. The analysis covered 350 AI Overviews and 5,036 citation occurrences across 572 distinct pages and 218 websites. Organic overlap was calculated within each search, counting repeated citations to the same page once; the recorded organic lists contained seven to ten results.
Eduard Mur：https://www.artificialintelligence-news.com/news/author/eduard-mur/
AI Search Strategist at Searcherries
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