{"topic_id":"owner_education_vitamin_d_plain","category":"owner-education","context":"---\ntopic_id: owner_education_vitamin_d_plain\ncategory: owner-education\ntitle: \"Plain-language: What is the vitamin D upper limit about (and why it matters for pet food)? (EN+ZH)\"\nlang: en\nsource: \"Derived from EFSA_NDA_vitamin_D_UL (C1-verified)\"\nsource_file: web/topics/efsa/EFSA_NDA_vitamin_D_UL/01_EFSA_NDA_vitamin_D_UL.md\ndate_parsed: 2026-08-16\ntokens_estimated: 340\nverified: true\nverification: derived\nsource_document: \"EFSA vitamin D tolerable upper intake level — plain-language owner summary\"\ncitation:\n  authority: \"EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) (via source topic)\"\n  title: \"EFSA vitamin D tolerable upper intake level — plain-language owner summary\"\n  url: \"https://doi.org/10.2903/j.efsa.2023.8145\"\n  retrieved: \"2026-08-16\"\n  ref: \"derived from EFSA_NDA_vitamin_D_UL\"\n  doc_type: \"derived plain-language summary\"\n  needs_review: false\nlicense: derived\n---\n\n**EN — For pet owners.** EFSA (Europe's food-safety science panel) set tolerable upper intake levels (UL) for vitamin D — the most you should get daily without risk. The numbers: `UL for vitamin D is 100 μg/day for adults`; `UL is 50 μg/day for children up to 10 years`; for infants `25 μg/day (up to 6 months)` and `35 μg/day (6–12 months)`. These limits derive from a `NOAEL of 250 μg/day for hypercalcaemia in adults` — too much vitamin D pushes blood calcium too high. Why pet owners should care: `vitamin D is a fat-soluble nutrient with a narrow safety margin in dogs and cats`, and `Vitamin D is routinely added to dog and cat foods`. Bottom line — vitamin D overdose is a real risk for pets; the human UL frames the same safety thinking behind pet-food maxima.\n\n**中文 — 给宠物主人。** EFSA（欧洲食品安全科学机构）为维生素 D 设定了可耐受最高摄入量（UL，每天不超过此量才安全）。数字：`UL for vitamin D is 100 μg/day for adults`（成人 100 μg/天）；`UL is 50 μg/day for children up to 10 years`（10 岁以下儿童 50 μg/天）；婴儿 `25 μg/day (up to 6 months)` 和 `35 μg/day (6–12 months)`。这些上限源自 `NOAEL of 250 μg/day for hypercalcaemia in adults`（维生素 D 过量会使血钙过高）。宠物主人为什么要关心：`vitamin D is a fat-soluble nutrient with a narrow safety margin in dogs and cats`（维生素 D 是脂溶性，在猫狗身上安全余量窄），且 `Vitamin D is routinely added to dog and cat foods`（常规添加进犬猫粮）。结论——维生素 D 过量对宠物是真风险；人体 UL 与宠物食品上限背后是同一套安全逻辑。\n\nSource topic: `EFSA_NDA_vitamin_D_UL` (C1-verified against EFSA Journal 2023;21(7):8145 XML).\n\n## Claims (verified as substrings of the C1-verified source topic)\n- `UL for vitamin D is 100 μg/day for adults`\n- `UL is 50 μg/day for children up to 10 years`\n- `25 μg/day (up to 6 months)`\n- `35 μg/day (6–12 months)`\n- `NOAEL of 250 μg/day for hypercalcaemia in adults`\n- `vitamin D is a fat-soluble nutrient with a narrow safety margin in dogs and cats`\n- `Vitamin D is routinely added to dog and cat foods`\n","sources":["Derived plain-language — EFSA vitamin D tolerable upper intake level — plain-language owner summary (retrieved 2026-08-16)"],"source":{"authority":"Derived plain-language","title":"EFSA vitamin D tolerable upper intake level — plain-language owner summary","url":"https://doi.org/10.2903/j.efsa.2023.8145","retrieved":"2026-08-16","ref":"","doc_type":"official source","source_document":"EFSA vitamin D tolerable upper intake level — plain-language owner summary","verification_file":"web/topics/efsa/EFSA_NDA_vitamin_D_UL/01_EFSA_NDA_vitamin_D_UL.md"},"source_document":"EFSA vitamin D tolerable upper intake level — plain-language owner summary","source_file":"web/topics/efsa/EFSA_NDA_vitamin_D_UL/01_EFSA_NDA_vitamin_D_UL.md","trust":{"authority_tier":"ungraded","fidelity":"verbatim","license":"derived","display_grade":"pending"},"tokens_estimated":400,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}