Review the latest independent laboratory heavy metal and purity test results for the top five physician-recommended prenatal vitamins on the market.
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Review the latest independent laboratory heavy metal and purity test results for the top five physician-recommended prenatal vitamins on the market.
2 real searches · 1 real-search pass
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classifying 2 queries…
Searches and sources
ChatGPT2 real searches · gpt-6
2026 independent laboratory testing prenatal vitamins heavy metals purity ConsumerLab prenatal multivitamin report Google ↗
prenatal vitamins physician recommended brands independent testing heavy metals lead arsenic cadmium mercury NSF USP ConsumerLab 2026 Google ↗
- 15 of 17 Prenatal Vitamins Contained Inaccurate Nutrient Amounts · consumerreports.org
- Prenatal Vitamins Tested for Pesticides, Lead, Phthalates, & PFAS · mamavation.com
- Heavy metals and phthalate contamination in prenatal vitamins and folic acid supplements · pubmed.ncbi.nlm.nih.gov
- SUPPLEMENTAL MATERIAL FOR GAO-24-106689: Testing Results for Selected Prenatal Supplements · gao.gov
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2026 independent laboratory testing prenatal vitamins heavy metals purity ConsumerLab prenatal multivitamin report OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
prenatal vitamins physician recommended brands independent testing heavy metals lead arsenic cadmium mercury NSF USP ConsumerLab 2026 OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 |