营销话术证据 A · 指南级
60+ 阿司匹林一级预防
真相
美国预防服务工作组 2022 年已撤回对 60 岁以上人群的这条推荐：出血风险大于心血管获益，总体弊大于利。
机制速览
心脏是一台一辈子不停的泵，它自己也要吃喝——得有稳定的能量、几种矿物质和氧气，才能一下一下地收缩。
来源（4）
- National Institutes of Health, Office of Dietary Supplements. (2021). Potassium — Fact Sheet for Health Professionals.
- National Institutes of Health, Office of Dietary Supplements. (2022). Magnesium — Fact Sheet for Health Professionals.
- National Institutes of Health, Office of Dietary Supplements. (2024). Calcium — Fact Sheet for Health Professionals.
- National Institutes of Health, Office of Dietary Supplements. (2024). Iron — Fact Sheet for Health Professionals. Fact sheet (updated September 4, 2025; Wayback snapshot 21 September 2026): RDAs 8 mg/day for men and for women 51+, 18 mg women 19-50, 27 mg pregnancy; UL 45 mg/day from age 14; bioavailability about 14%-18% from mixed diets with meat, seafood and vitamin C and 5%-12% from vegetarian diets; serum ferritin below 30 mcg/L suggests iron deficiency and below 10 mcg/L IDA, but inflammation can raise ferritin; supplemental iron of 45 mg/day or more may cause nausea and constipation; people with hereditary hemochromatosis are at risk of iron overload (fact sheet). Heme vs nonheme: heme iron (lean meat and seafood are the richest sources) has higher bioavailability than nonheme iron, and other dietary components affect it less; calcium might reduce the bioavailability of both forms; heme iron is about 10%-15% of total iron intake in western populations. The sheet gives no separate heme and nonheme absorption percentages (fact sheet, Wayback 2026 snapshot).