--- title: "One A Day vs Pure Encapsulations: Which is searched more in the United States?" description: "Is One A Day or Pure Encapsulations more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Vitamin and supplement brands set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/us/compare/one-a-day-vs-pure-encapsulations" publisher: "Brandwave" --- # One A Day vs Pure Encapsulations: Which is searched more in the United States? Is One A Day or Pure Encapsulations more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Vitamin and supplement brands set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: One A Day and Pure Encapsulations - **Competitive set**: Vitamin and supplement brands - **Market**: United States - **Month measured**: Sep 2026 - **One A Day Share of Search**: 1.4% - **Pure Encapsulations Share of Search**: 12.4% ## Is One A Day or Pure Encapsulations more popular in search? - In September 2026, Pure Encapsulations had more branded searches than One A Day among vitamin and supplement brands in the United States. Pure Encapsulations had about 90,500 branded searches, while One A Day had 9,900. Pure Encapsulations made up 12.4% of all vitamin and supplement brand searches we track, and One A Day accounted for 1.4%. - Pure Encapsulations was ahead of One A Day in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, One A Day’s share of searches among vitamin and supplement brands in the United States moved from 1.3% to 1.4%, and its estimated monthly branded searches held steady at 9.9K. - Across the 12 months ending September 2026, Pure Encapsulations’ share of searches among vitamin and supplement brands in the United States moved from 12.1% to 12.4%, and its estimated monthly branded searches held steady at 90.5K. ## Top vitamin and supplement brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, neither One A Day nor Pure Encapsulations showed up in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Nature Made | 1st | 3 of 3 | 0 of 2 | 3 of 5 | | Thorne | 2nd | 2 of 3 | 0 of 2 | 2 of 5 | | Nordic Naturals | 3rd | 1 of 3 | 0 of 2 | 1 of 5 | | AG1 | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Pure Encapsulations | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Seed | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | MaryRuth's | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Ritual | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Vital Proteins | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Centrum | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Garden of Life | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Olly | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | HUM Nutrition | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | New Chapter | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | One A Day | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about vitamin and supplement brands - Asked ChatGPT "Which vitamin brand should I buy?": 1. Nature Made, 2. Thorne - Asked ChatGPT "What are the most trusted supplement brands?": 1. Thorne, 2. Nature Made, 3. Nordic Naturals - Asked ChatGPT "What is the best multivitamin?": 1. Nature Made - Searched Google, AI Overview "vitamins": named none of the brands we track - Searched Google, AI Overview "supplements": named none of the brands we track Not named in any answer: AG1, Pure Encapsulations, Seed, MaryRuth's, Ritual, Vital Proteins, Centrum, Garden of Life, Olly, HUM Nutrition, New Chapter and One A Day. Brands are listed in the order each answer named them. The answers were collected in United States on October 26, 2026. ## How did search popularity change for United States vitamin and supplement brands in September 2026? - In September 2026, Pure Encapsulations lost share of searches among vitamin and supplement brands in the United States, from 13.8% to 12.4%. - In September 2026, One A Day fell from 14th to 15th among vitamin and supplement brands in the United States. ## Month by month | Month | One A Day estimated searches | One A Day Share of Search | One A Day rank | Pure Encapsulations estimated searches | Pure Encapsulations Share of Search | Pure Encapsulations rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 9.9K | 1.3% | 14 | 90.5K | 12.1% | 2 | | Nov 2025 | 9.9K | 1.3% | 14 | 110K | 14.1% | 2 | | Dec 2025 | 9.9K | 1.2% | 14 | 110K | 13.6% | 2 | | Jan 2026 | 12.1K | 1.1% | 14 | 135K | 12.3% | 2 | | Feb 2026 | 9.9K | 1.1% | 14 | 110K | 12.7% | 3 | | Mar 2026 | 9.9K | 1% | 14 | 110K | 11.6% | 3 | | Apr 2026 | 9.9K | 1.1% | 14 | 110K | 12.5% | 3 | | May 2026 | 9.9K | 1.2% | 14 | 110K | 12.8% | 3 | | Jun 2026 | 9.9K | 1.3% | 15 | 110K | 14.3% | 2 | | Jul 2026 | 9.9K | 1.3% | 15 | 110K | 14.3% | 2 | | Aug 2026 | 12.1K | 1.5% | 14 | 110K | 13.8% | 3 | | Sep 2026 | 9.9K | 1.4% | 15 | 90.5K | 12.4% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using One A Day’s and Pure Encapsulations’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **One A Day**: Measured on the search term “one a day vitamins”. - **Pure Encapsulations**: Measured on the search term “pure encapsulations”. - [One A Day profile](/demand/us/brands/one-a-day) - [Pure Encapsulations profile](/demand/us/brands/pure-encapsulations) - [All vitamin and supplement brands in the United States](/demand/us/categories/us-vitamin-brands): The set both shares are measured inside, 15 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is One A Day or Pure Encapsulations more popular in search? In September 2026, Pure Encapsulations had more branded searches than One A Day among vitamin and supplement brands in the United States. Pure Encapsulations had about 90,500 branded searches, while One A Day had 9,900. Pure Encapsulations made up 12.4% of all vitamin and supplement brand searches we track, and One A Day accounted for 1.4%. ## Cite this page Brandwave. "One A Day vs Pure Encapsulations: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/one-a-day-vs-pure-encapsulations This page is also available as HTML at https://gobrandwave.com/demand/us/compare/one-a-day-vs-pure-encapsulations. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.