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Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0B4YF39ZW","observed_at":"2026-07-31","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0B4YF39ZW","observed_at":"2026-07-31","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-31","content_fingerprint":"sha256:1fb3578cbf4d6c7c55a159173301a5b9083ada970a1d72c5606bf4e5355b2cb1","evidence_url":"https://lookcloser.ai/e/ev-b0f791f3a05c"},{"evidence_id":"ev-26f24f8c10c2","record_id":"lc-413da6b6","gtin":null,"claim_key":"finding:keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","primary_source":"keepa_history","claim":"This item belongs to a catalog variation family","bucket":"unverified","looked":"LookCloser checked Keepa exact-listing history.","found":"The paid catalog links this exact item to a parent listing. 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Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0B4YF39ZW","observed_at":"2026-07-31","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0B4YF39ZW","observed_at":"2026-07-31","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-31","content_fingerprint":"sha256:82f10be970817765c3ab22cfe24815494e781e685c54f9a59d559aadbccef258","evidence_url":"https://lookcloser.ai/e/ev-26f24f8c10c2"},{"evidence_id":"ev-3bf6c9ed595e","record_id":"lc-413da6b6","gtin":null,"claim_key":"finding:nih-published-research-research-context-is-available-for-the-listed-ingr","primary_source":"nih_ods_zinc","claim":"Research context is available for the listed ingredients","bucket":"unverified","looked":"LookCloser checked NIH / published research.","found":"Published sources describe how zinc have been studied. 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