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This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product."},"html_anchor":"finding-uspto-trademark-registry-exact-trademark-owner-identified","report_url":"https://lookcloser.ai/p/750363800754/full#finding-uspto-trademark-registry-exact-trademark-owner-identified"},{"id":"barcode-gtin-record-upc-independently-corroborated","source":"Barcode / GTIN record","class":"ok","noted":false,"severity":"ok","weight":38,"headline":"UPC independently corroborated","detail":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing.","proof":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing.","identity_basis":"gtin","status":"live","source_refs":["barcode_search","source_listing"],"source_url":"https://world.openfoodfacts.org/product/00750363800754","scope":"exact_product","inference_level":"direct_observation","observed_at":"2026-07-20","presentation_tone":"ok","evidence_id":"ev-e8c8d91dedb9","evidence_url":"https://lookcloser.ai/e/ev-e8c8d91dedb9","content_fingerprint":"sha256:f89f3fee9afdd4ccc189c8f4a91ebd28ab41adff64ba969c73db519a084f8b0e","registry_receipts":[],"evidence":{"summary":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing.","source_refs":["barcode_search","source_listing"],"source_records":[{"source":"barcode_search","source_url":"https://world.openfoodfacts.org/product/00750363800754","observed_at":"2026-07-20","identity_basis":"gtin","scope":"exact_gtin"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","looked":"LookCloser checked Barcode / GTIN record.","found":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing."},"html_anchor":"finding-barcode-gtin-record-upc-independently-corroborated","report_url":"https://lookcloser.ai/p/750363800754/full#finding-barcode-gtin-record-upc-independently-corroborated"},{"id":"label-and-serving-arithmetic-multi-ingredient-formula-panel-read-serving","source":"Label and serving arithmetic","class":"gap","noted":false,"severity":"info","weight":22,"headline":"Multi-ingredient formula — panel read, serving weight unknown","detail":"We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. 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A gap in the label’s information, not evidence of a problem."},"html_anchor":"finding-label-and-serving-arithmetic-multi-ingredient-formula-panel-read-serving","report_url":"https://lookcloser.ai/p/750363800754/full#finding-label-and-serving-arithmetic-multi-ingredient-formula-panel-read-serving"},{"id":"nih-published-research-research-context-is-available-for-the-listed-ingr","source":"NIH / published research","class":"gap","noted":false,"severity":"info","weight":22,"headline":"Research context is available for the listed ingredients","detail":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.","proof":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.","identity_basis":"ingredient","status":"live","source_refs":["nih_ods_magnesium","pubmed_magnesium"],"source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","scope":"ingredient_context","inference_level":"gap","observed_at":"2026-07-20","presentation_tone":"gap","evidence_id":"ev-926c78c79e57","evidence_url":"https://lookcloser.ai/e/ev-926c78c79e57","content_fingerprint":"sha256:897936654338ca7cf9adcb188926b44a7e5f257175dc0d17e29d7135fa4db16b","registry_receipts":[{"source":"nih_ods_magnesium","url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","label":"NIH ODS — Magnesium fact sheet","registry_name":"NIH ODS","standard":null,"identifier":"magnesium"}],"evidence":{"summary":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.","source_refs":["nih_ods_magnesium","pubmed_magnesium"],"source_records":[{"source":"nih_ods_magnesium","source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","observed_at":"2026-07-20","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"magnesium","receipt_label":"NIH ODS — Magnesium fact sheet"},{"source":"pubmed_magnesium","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=magnesium+glycinate+supplementation","observed_at":"2026-07-20","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-20","looked":"LookCloser checked NIH / published research.","found":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation."},"html_anchor":"finding-nih-published-research-research-context-is-available-for-the-listed-ingr","report_url":"https://lookcloser.ai/p/750363800754/full#finding-nih-published-research-research-context-is-available-for-the-listed-ingr"},{"id":"fda-public-records-recall-search-no-match-found-as-of-sep-03-2026","source":"FDA public records","class":"gap","noted":false,"severity":"info","weight":19,"headline":"Recall search: no match found (as of Sep 03, 2026)","detail":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.","proof":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.","identity_basis":"none","status":"live","source_refs":["openfda_search"],"source_url":"https://api.fda.gov/food/enforcement.json?search=(recalling_firm:%22BIOptimizers%22+OR+product_description:%22BIOptimizers%22)&limit=5","scope":"search_scope","inference_level":"gap","observed_at":"2026-07-20","presentation_tone":"caution","evidence_id":"ev-9c0d98f83a61","evidence_url":"https://lookcloser.ai/e/ev-9c0d98f83a61","content_fingerprint":"sha256:e1fac2aaefe2c654721ff5d17e1ced7d9e7a5b9e28feb8bf5f1240a9dfa4a780","registry_receipts":[],"evidence":{"summary":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.","source_refs":["openfda_search"],"source_records":[{"source":"openfda_search","source_url":"https://api.fda.gov/food/enforcement.json?search=(recalling_firm:%22BIOptimizers%22+OR+product_description:%22BIOptimizers%22)&limit=5","observed_at":"2026-07-20","identity_basis":"search_only","scope":"product_or_brand","registry_name":"FDA enforcement","identifier":"BIOptimizers","receipt_label":"FDA enforcement search · BIOptimizers"}],"observed_at":"2026-07-20","looked":"LookCloser checked FDA public records.","found":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records."},"html_anchor":"finding-fda-public-records-recall-search-no-match-found-as-of-sep-03-2026","report_url":"https://lookcloser.ai/p/750363800754/full#finding-fda-public-records-recall-search-no-match-found-as-of-sep-03-2026"},{"id":"keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","source":"Keepa exact-listing history","class":"gap","noted":false,"severity":"info","weight":19,"headline":"This item belongs to a catalog variation family","detail":"The paid catalog links this exact item to a parent listing. 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.","proof":"The paid catalog links this exact item to a parent listing. 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.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B08WPLW4VN","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-20","presentation_tone":"gap","evidence_id":"ev-3b344487283c","evidence_url":"https://lookcloser.ai/e/ev-3b344487283c","content_fingerprint":"sha256:56ace0059c42e0a2c99de753e9d27635e33df17d06b6f6603346fef82df1e20e","registry_receipts":[],"evidence":{"summary":"The paid catalog links this exact item to a parent listing. 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":["keepa_history","source_listing"],"source_records":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","looked":"LookCloser checked Keepa exact-listing history.","found":"The paid catalog links this exact item to a parent listing. 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."},"html_anchor":"finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","report_url":"https://lookcloser.ai/p/750363800754/full#finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam"},{"id":"keepa-exact-listing-history-180-day-review-count-history-is-on-file","source":"Keepa exact-listing history","class":"gap","noted":false,"severity":"info","weight":16,"headline":"180-day review-count history is on file","detail":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","proof":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B08WPLW4VN","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-20","presentation_tone":"gap","evidence_id":"ev-ed2275bfefad","evidence_url":"https://lookcloser.ai/e/ev-ed2275bfefad","content_fingerprint":"sha256:ca4a18b594dbb0afc5afe94bf680b4396cd2f303fbecff5307c300ef080b85cf","registry_receipts":[],"evidence":{"summary":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","source_refs":["keepa_history","source_listing"],"source_records":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","looked":"LookCloser checked Keepa exact-listing history.","found":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic."},"html_anchor":"finding-keepa-exact-listing-history-180-day-review-count-history-is-on-file","report_url":"https://lookcloser.ai/p/750363800754/full#finding-keepa-exact-listing-history-180-day-review-count-history-is-on-file"}],"evidence_records":[{"evidence_id":"ev-94bfb067d380","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:nutrient_ul_exceeded_magnesium","primary_source":"source_listing","claim":"Magnesium is above the adult upper limit","bucket":"claimed_no_support","looked":"LookCloser checked Supplement Facts panel / NIH ODS.","found":"The panel lists 500 mg magnesium. NIH gives 350 mg as the adult Tolerable Upper Intake Level for SUPPLEMENTAL magnesium only (not from food). That is about 1.4 times the limit.","proof":{"ingredient":"magnesium","declared":"500 mg","ul":"350 mg","scope":"SUPPLEMENTAL magnesium only (not from food)","ratio":1.4,"ods_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/"},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:b3e19f2289bb76a2bb5261b112445ccabce62288c61c6589e81ef9fbf6a01cdb","evidence_url":"https://lookcloser.ai/e/ev-94bfb067d380"},{"evidence_id":"ev-006aa945f4f7","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:uspto-trademark-registry-exact-trademark-owner-identified","primary_source":"uspto_search","claim":"Exact trademark owner identified","bucket":"checks_out","looked":"LookCloser checked USPTO trademark registry.","found":"USPTO lists BIOptimizers USA Inc (CORPORATION) in Nevada, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.","proof":{"detail":"USPTO lists BIOptimizers USA Inc (CORPORATION) in Nevada, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product."},"source_refs":[{"source":"uspto_search","source_url":"https://tsdr.uspto.gov/#caseNumber=98562357&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-20","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 7696492","receipt_label":"USPTO · Registration 7696492"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:b6243664fbe8d9faa74bcb295ad056e956651fd3db6a95284ce870a32464f930","evidence_url":"https://lookcloser.ai/e/ev-006aa945f4f7"},{"evidence_id":"ev-e8c8d91dedb9","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:barcode-gtin-record-upc-independently-corroborated","primary_source":"barcode_search","claim":"UPC independently corroborated","bucket":"checks_out","looked":"LookCloser checked Barcode / GTIN record.","found":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing.","proof":{"detail":"Open Food Facts resolves 750363800754 to \"Magnesium Breakthrough\" (BiOptimizers) — consistent with this listing."},"source_refs":[{"source":"barcode_search","source_url":"https://world.openfoodfacts.org/product/00750363800754","observed_at":"2026-07-20","identity_basis":"gtin","scope":"exact_gtin"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:f89f3fee9afdd4ccc189c8f4a91ebd28ab41adff64ba969c73db519a084f8b0e","evidence_url":"https://lookcloser.ai/e/ev-e8c8d91dedb9"},{"evidence_id":"ev-77db4bde9162","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:nih-published-research-each-ingredient-s-amount-is-disclosed","primary_source":"nih_ods_magnesium","claim":"Each ingredient’s amount is disclosed","bucket":"checks_out","looked":"LookCloser checked NIH / published research.","found":"The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.","proof":{"detail":"The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research."},"source_refs":[{"source":"nih_ods_magnesium","source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","observed_at":"2026-07-20","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"magnesium","receipt_label":"NIH ODS — Magnesium fact sheet"},{"source":"pubmed_magnesium","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=magnesium+glycinate+supplementation","observed_at":"2026-07-20","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:b7bdde8b3791844deb03be9d417d0dae0ac1dc7977df8b9c6aa257f3f9a07cf3","evidence_url":"https://lookcloser.ai/e/ev-77db4bde9162"},{"evidence_id":"ev-c05ab387eedc","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:nih-label-catalog-registered-in-nih-s-supplement-label-database-dsld","primary_source":"nih_dsld_search","claim":"Registered in NIH's supplement label database (DSLD)","bucket":"checks_out","looked":"LookCloser checked NIH label catalog.","found":"Label #334468 “Magnesium Breakthrough” (BiOptimizers), entered 2025-09-25, with the full Supplement Facts on file. Company on file: Distributor — BiOptimizers USA Inc., Reno, NV.","proof":{"detail":"Label #334468 “Magnesium Breakthrough” (BiOptimizers), entered 2025-09-25, with the full Supplement Facts on file. Company on file: Distributor — BiOptimizers USA Inc., Reno, NV."},"source_refs":[{"source":"nih_dsld_search","source_url":"https://dsld.od.nih.gov/label/334468","observed_at":"2026-07-20","identity_basis":"brand_product_name","scope":"product_label","registry_name":"NIH DSLD","identifier":"Label #334468","receipt_label":"NIH DSLD · Label #334468"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:df567cdc42b7f9ff3974eff901c4e7e91ebe760051eda0811e85fbf5f2ab209d","evidence_url":"https://lookcloser.ai/e/ev-c05ab387eedc"},{"evidence_id":"ev-9c0d98f83a61","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:fda-public-records-recall-search-no-match-found-as-of-sep-03-2026","primary_source":"openfda_search","claim":"Recall search: no match found (as of Sep 03, 2026)","bucket":"unverified","looked":"LookCloser checked FDA public records.","found":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.","proof":{"detail":"This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records."},"source_refs":[{"source":"openfda_search","source_url":"https://api.fda.gov/food/enforcement.json?search=(recalling_firm:%22BIOptimizers%22+OR+product_description:%22BIOptimizers%22)&limit=5","observed_at":"2026-07-20","identity_basis":"search_only","scope":"product_or_brand","registry_name":"FDA enforcement","identifier":"BIOptimizers","receipt_label":"FDA enforcement search · BIOptimizers"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:e1fac2aaefe2c654721ff5d17e1ced7d9e7a5b9e28feb8bf5f1240a9dfa4a780","evidence_url":"https://lookcloser.ai/e/ev-9c0d98f83a61"},{"evidence_id":"ev-22a46cd70432","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:label-and-serving-arithmetic-multi-ingredient-formula-panel-read-serving","primary_source":"facts_panel","claim":"Multi-ingredient formula — panel read, serving weight unknown","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.","proof":{"detail":"We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:4dfde02d51a6dcc1dcc50f034f21018395c9cae16aea9c21901b29171b8e98af","evidence_url":"https://lookcloser.ai/e/ev-22a46cd70432"},{"evidence_id":"ev-ed2275bfefad","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:keepa-exact-listing-history-180-day-review-count-history-is-on-file","primary_source":"keepa_history","claim":"180-day review-count history is on file","bucket":"unverified","looked":"LookCloser checked Keepa exact-listing history.","found":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","proof":{"detail":"Exact-listing history records written-review counts from 1,063 on 2025-07-31 to 2,126 on 2026-08-27 (net +1,063). 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-B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:ca4a18b594dbb0afc5afe94bf680b4396cd2f303fbecff5307c300ef080b85cf","evidence_url":"https://lookcloser.ai/e/ev-ed2275bfefad"},{"evidence_id":"ev-3b344487283c","record_id":"750363800754","gtin":"750363800754","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. 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.","proof":{"detail":"The paid catalog links this exact item to a parent listing. 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-B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B08WPLW4VN","observed_at":"2026-07-20","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-20","content_fingerprint":"sha256:56ace0059c42e0a2c99de753e9d27635e33df17d06b6f6603346fef82df1e20e","evidence_url":"https://lookcloser.ai/e/ev-3b344487283c"},{"evidence_id":"ev-926c78c79e57","record_id":"750363800754","gtin":"750363800754","claim_key":"finding:nih-published-research-research-context-is-available-for-the-listed-ingr","primary_source":"nih_ods_magnesium","claim":"Research context is available for the listed ingredients","bucket":"unverified","looked":"LookCloser checked NIH / published research.","found":"Published sources describe how magnesium have been studied. 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