Magnesium
Where AI assistants place [Your Brand] when a shopper asks what Magnesium to buy - and the moves that would raise its rank.
Grok · collected September 1, 2026
Share of voice = the share of answers in which the brand is named. Assistants name several brands per answer, so these figures overlap and do not sum to 100%.
[Your Brand] holds 16% share of the AI shelf for Magnesium, ranked #6 of 98 brands.
Thorne leads at 66% SoV, 50 points ahead of [Your Brand].
[Your Brand] is named first in only 0% of answers, and the attribute competitors most often win on is Third-party tested.
[Your Brand] is never named in 16 of 20 buyer questions, including "best magnesium for athletes and recovery".
These are the most specific questions a buyer asks - they state an exact requirement. Assistants answer them from pages that address that requirement directly, and [Your Brand] does not have one.
Asked: “best vegan magnesium capsules”
Top Overall Pick: Doctor’s Best High Absorption Magnesium Glycinate Lysinate
Verbatim excerpts from collected answers. These are the assistants' own words, reproduced unedited - including any claims about other brands, which we neither verify nor endorse.
Domains the assistants link to when answering these questions. Getting cited here is what moves the numbers above.
| Domain | Share of citations |
|---|---|
| verywellhealth.com | 7% |
| consumerlab.com | 5% |
| getmineralized.com | 3% |
| verifiedsupplementdata.com | 2% |
| pmc.ncbi.nlm.nih.gov | 2% |
| gmtoday.com | 2% |
| ubiehealth.com | 2% |
| uclahealth.org | 1% |
| boltpharmacy.co.uk | 1% |
| supplementscored.com | 1% |
No assistant opened your-brand.example in this measurement.
Pages on your-brand.example that assistants opened and quoted while answering these questions. In the table above your domain is one row with a citation share; the question here is a different one: did the answer that read your page end up naming [Your Brand].
| Question | Named in |
|---|---|
| third party tested magnesium supplement | 5 / 5 |
| best magnesium supplement | 5 / 5 |
| best magnesium brands 2026 | 5 / 5 |
| best magnesium and calcium supplement | 1 / 5 |
| practitioner grade magnesium brands | 0 / 5 |
| Question | Named in |
|---|---|
| best magnesium for athletes and recovery | 0 / 5 |
| best magnesium for constipation | 0 / 5 |
| best magnesium for heart health |
20 buyer questions x 1 assistants x 5 runs = 100 answers, collected September 1, 2026.
AI answers are not deterministic: the same question asked twice can name different brands. We ask every question multiple times on every assistant, so these numbers describe a pattern rather than a single lucky or unlucky answer.
All answers are collected through official APIs with web grounding enabled - no scraping of chat interfaces. Every run is stored immutably, so this report can be reproduced exactly as it was generated.
This is your baseline. We re-run this monthly - the next report shows what moved, what did not, and whether the moves above landed.
These questions carry 80% of the answers in this measurement. Entering them is the cheapest gain available in this report.
Answering these questions, assistants opened 743 links and not one of them was on your-brand.example. Every source behind these answers belongs to somebody else.
A grounded assistant answers from pages it opened, and it opens pages that answer the question as it was asked - comparisons, buying guides, "best X for Y". A site made of product pages and company news gives it nothing to open. your-brand.example is the only source in this report you own outright, and it is not currently in the running.
The one source in this report nobody has to be persuaded to publish. A page of yours that starts getting opened moves you from arguing for a mention on somebody else's page to supplying the sentence yourself.
In answers where [Your Brand] ranks below a competitor, the higher-ranked entrant is credited with these properties:
These are the specific properties assistants cite when they justify a pick. They are visible, checkable, and mostly fixable.
The most direct lever in this report - it is the difference between being listed and being recommended.
[Your Brand] appears in 16% of answers but is named first in only 0%. When it is named, it sits on average at place 5.9 in the assistant's list of brands. These are the questions where it comes closest, with the brand that takes first place in those same answers.
Being named is a coverage problem; being named first is a positioning problem. Assistants lead with whichever brand most cleanly matches the intent in the question - "best overall", "best value", "best for women". [Your Brand] currently reads as a safe second choice rather than as the answer to a specific one.
[Your Brand] is effectively never the first name in the answer today, so the entire first-mention share is still open. The first three places are where an assistant's recommendation actually lands - the rest of the list is read as also-rans.
Assistants opened 743 links to answer the Magnesium questions in this measurement, and they took them from a narrow set of domains: verywellhealth.com alone accounts for 7% of them. Every domain below already turns up in answers that name [Your Brand] - the work here is depth on those pages rather than a first placement.
Grounded assistants cite before they recommend. A brand that is not on those pages is usually not in the answer. The last number on each line is how often reading that domain ended in an answer that named you - a domain read this often with a low number beside it is a page the assistants already trust and you are missing from.
The slowest of these moves and the most durable. A placement lands in front of every answer that already opens that domain - verywellhealth.com alone is read in 51 answers of this measurement. Citation placement compounds: it feeds every future answer.
| 0 / 5 |
| best magnesium for muscle cramps | 0 / 5 |
| best magnesium for restless legs | 0 / 5 |
| Question | Named in | Answers |
|---|---|---|
| best magnesium brands 2026 | 5 | 5 |
| best magnesium supplement | 5 | 5 |
| third party tested magnesium supplement | 5 | 5 |
| best magnesium and calcium supplement | 1 | 5 |
| best magnesium for athletes and recovery | 0 | 5 |
| best magnesium for constipation | 0 | 5 |
| best magnesium for heart health | 0 | 5 |
| best magnesium for muscle cramps | 0 | 5 |
| best magnesium for restless legs | 0 | 5 |
| best magnesium for sensitive stomach | 0 | 5 |
| best magnesium for sleep | 0 | 5 |
| best magnesium for women over 40 | 0 | 5 |
| best magnesium powder | 0 | 5 |
| best vegan magnesium capsules | 0 | 5 |
| hypoallergenic magnesium supplement | 0 | 5 |
| magnesium for anxiety which one | 0 | 5 |
| magnesium for migraines which form | 0 | 5 |
| magnesium glycinate vs citrate | 0 | 5 |
| magnesium supplement without magnesium stearate | 0 | 5 |
| practitioner grade magnesium brands | 0 | 5 |