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HeartCited

Vitamin E 用于 Atherosclerosis

C

Strong mechanistic rationale (LDL oxidation inhibition) but large RCTs (HOPE, GISSI-Prevenzione) show no benefit. Meta-analysis suggests potential harm at >=400 IU/day. AHA does not recommend supplementation.

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C

结论

Strong mechanistic rationale (LDL oxidation inhibition) but large RCTs (HOPE, GISSI-Prevenzione) show no benefit. Meta-analysis suggests potential harm at >=400 IU/day. AHA does not recommend supplementation.

Key Statistics

15

研究数量

50000

受试者

Mixed

C

等级

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

常用剂量

note:
High-dose supplementation no longer recommended based on clinical trial evidence
general:
15 mg/day (22.4 IU)

上限: 1,000 mg/day (1,500 IU natural, 1,100 IU synthetic)

最佳服用时间: With meals containing fat

Safety & Side Effects

已报告的副作用

  • Increased bleeding risk at high doses
  • Possible increased all-cause mortality at >=400 IU/day
  • Increased heart failure hospitalization risk (HOPE/HOPE-TOO)
  • Nausea, diarrhea, fatigue at high doses

已知相互作用

  • Anticoagulants (increased bleeding risk)
  • Statins and niacin (may blunt HDL-raising effect)
  • Chemotherapy and radiation (theoretical interference with oxidative mechanisms)
  • Vitamin K (may antagonize at high doses)

可耐受最高摄入量: 1,000 mg/day (1,500 IU natural, 1,100 IU synthetic)

在开始服用任何补充剂之前,请务必咨询您的医疗保健提供者。

Frequently Asked Questions

Does Vitamin E help with Atherosclerosis?
Based on 15 studies with 50,000 participants, there is limited but promising evidence that Vitamin E may support Atherosclerosis management. Our evidence grade is C (Some Evidence).
How much Vitamin E should I take for Atherosclerosis?
Studies have used various dosages. A commonly studied range is High-dose supplementation no longer recommended based on clinical trial evidence. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Vitamin E?
Reported side effects may include Increased bleeding risk at high doses, Possible increased all-cause mortality at >=400 IU/day, Increased heart failure hospitalization risk (HOPE/HOPE-TOO), Nausea, diarrhea, fatigue at high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Vitamin E and Atherosclerosis?
We rate the evidence as Grade C (Some Evidence). This rating is based on 15 peer-reviewed studies with 50,000 total participants. The overall direction of effect is mixed.

Related Evidence

FDA 免责声明: 这些声明未经美国食品药品监督管理局(FDA)评估。本网站上的产品和信息无意用于诊断、治疗、治愈或预防任何疾病。所展示的证据等级基于我们对已发表的同行评审研究的分析,不构成医疗建议。在开始任何补充剂方案之前,请务必咨询您的医疗保健提供者。