Vitamin E
Also known as: Alpha-tocopherol
Vitamin E is a fat-soluble antioxidant. Most people get enough from diet, and high-dose supplements are commonly discouraged because of possible bleeding risk and mixed outcome studies. It is fat-soluble, so it is taken with food.
Snapshot
Evidence level is outcome-specific; a supplement can have stronger evidence for one use and limited evidence for another.
What this page can tell you: Commonly discussed timing, food notes, caution categories, and an honest note on how much source review this entry still needs.
What it cannot: Whether this is appropriate for you personally, or that it treats, prevents, or cures any condition. Informational only — discuss with a clinician or pharmacist.
🧩 Stack insights — how this fits into a schedule
High-dose bleeding risk — NIH ODS: the adult upper limit for supplemental vitamin E is 1,000 mg/day; high doses can raise bleeding risk (including hemorrhagic-stroke concerns) and interact with anticoagulant/antiplatelet medicines. Commonly paused before surgery.
⚠️ Bleeding / surgery caution category at higher doses.
A meal with some fat — Vitamin E is fat-soluble, so it is commonly taken with a meal or snack that includes some fat for absorption.
Relationship insights are informational only — they describe what is commonly discussed or studied, not what you should take. Not medical advice; review your routine with a clinician or pharmacist.
🕒 Timing
When: With a meal
Food: With a meal containing fat
Fat-soluble; commonly taken with a meal containing fat.
💊 Common use range
15 mg (≈22 IU)
Commonly cited adult upper limit around 1,000 mg/day of supplemental alpha-tocopherol; high doses may increase bleeding risk.
Ranges are informational, not a recommended dose. Talk to a professional about what is right for you.
🤔 Worth considering?
Evidence vs. effort: Mixed evidence relative to burden
Obtained easily from food; high-dose supplements are where the concerns are. High doses can increase bleeding risk and have a documented surgery and anticoagulant caution. Worth discussing with a professional before high-dose or perioperative use.
A general summary, not a recommendation. Whether something fits your situation is worth discussing with a healthcare professional.
⚠️ Commonly noted interactions (supplements)
None listed.
Often about absorption or timing rather than danger — separating doses is common. This list is not exhaustive.
🧭 Baseline caution
General caution for ordinary, common use — before accounting for your specific dose, medications, health history, or procedures.
No general caution factors flagged for ordinary use. See context alerts below for situations that may still apply to you.
Caution level is an informational summary of commonly discussed caution categories and doses — not a safety rating, approval, or medical advice. Low caution does not mean safe for you.
🔎 Context alerts to review
Context alerts may matter depending on your dose, medications, health history, or procedure plans — they do not mean the supplement is generally risky at ordinary use.
Dose / upper limit
- Has a commonly discussed upper limit — watch total daily intake
Surgery & bleeding
- Bleeding / surgery caution — mention before procedures and with blood thinners
Medications
- Anticoagulant (blood thinner) interaction
- Antiplatelet interaction
🩺 Medication caution categories
- Blood thinners (anticoagulants) — The concern is an additive effect on bleeding, or a change in how the anticoagulant works — worth raising with your prescriber, especially before procedures.
- Antiplatelet medication — Like blood thinners, the worry is added bleeding risk when combined — a prompt to check with a professional.
🏥 Surgery & procedure caution
High-dose vitamin E may increase bleeding; commonly paused before surgery. Confirm with your care team.
If you have a procedure scheduled, bring your full supplement list to your surgical and anesthesia team. Do not stop prescribed medication unless your clinician tells you to. Do not start or stop supplements based only on this app.
✅ Quality checklist
- Prefer products with third-party testing or a certificate of analysis (COA).
- Check the label for the exact form and the elemental or active amount per serving.
🧩 Commonly paired with
🔁 Alternatives
None listed.
🗣️ Questions for a professional
- Is Vitamin E appropriate alongside my medications and health history?
- Is there a test or check that would tell us whether I actually need it?
🔬 Evidence snapshot
A fat-soluble antioxidant. Research on high-dose supplements for chronic disease is mixed and does not support routine high-dose use, which may carry risks.
🧪 Forms & quality
Needs evidence review — no source-reviewed information yet. We only show dose and monitoring details after they have been checked against reputable sources.
See the supplement glossary for what form names like "L-", chelated, or standardized extract mean.
📏 Dose & monitoring
NIH ODS sets an adult (19+) Tolerable Upper Intake Level of 1,000 mg/day of supplemental alpha-tocopherol (about 1,500 IU natural or 1,100 IU synthetic).
Evidence vs. burden: Mixed evidence relative to burden
😐 Commonly reported side effects
- Uncommon at dietary levels; bleeding risk at high doses
Non-exhaustive and individual.
🔄 Cycling & breaks
Not typically cycled.
📅 Daily use notes
Food-first is common; avoid stacking high-dose E from multiple products.
📋 Source review status
Source-reviewed — last reviewed 2026-07-02
Placeholder.
📚 References
- NIH ODS - Vitamin E (Health Professional Fact Sheet)NIH ODS — Verified UL, bleeding/hemorrhagic-stroke caution, and warfarin/antiplatelet and surgery interactions.
Verified against the source shown. See the research-status page for how review works.
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