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Vitamin · in-depth review

Alpha-Tocopherol

Alpha-Tocopherol

α-Tocopherol is the vitamin E form the liver's α-tocopherol transfer protein preferentially retains. Dietary references are based on this molecule; in cell membranes it breaks the lipid-peroxidation chain.

Also known asTocopherol
Related symptomsDry skin

Marked asPrimarySupporting

Primary

Interrupts lipid peroxidation

Of tocopherols reaching the liver, only α is packed by the transfer protein into VLDL for recirculation; at the membrane it intercepts peroxyl radicals. Sunflower oil and almonds are high in it; diets of repeated frying and few nuts leave lipid-rich structures such as red cells and nerve myelin most dependent on this form.

Supporting

Protects immune-cell membranes

Lymphocyte membranes are rich in polyunsaturated fatty acids; with enough α-tocopherol, membrane fluidity and receptor signaling are more stable. Older adults, people with poor fat absorption, or those on long-term very-low-fat diets have weaker membrane antioxidant protection; nutritional need is defined by this form.

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Dry skin

Of tocopherols reaching the liver, only α is packed by the transfer protein into VLDL for recirculation; at the membrane it intercepts peroxyl radicals. People whose calves or cheeks feel tight and flaky more often notice moisture and less itch after several continuous weeks.

Non-alcoholic fatty liver disease

Of tocopherols reaching the liver, only α is packed by the transfer protein into VLDL for recirculation; at the membrane it intercepts peroxyl radicals. People whose imaging or enzyme markers suggest fatty liver and who feel fullness under the right ribs more often notice abdominal feel and labs after several continuous weeks.

With foodTake with breakfast or lunch (not on an empty stomach), with fat-containing food for better absorption
Best timeMorning or midday
SolubilityFat-soluble

Check whether the label is natural d-alpha or synthetic dl-alpha form.

General wellness15 mg alpha-tocopherol/day for adults
Specific needsDeficiency is uncommon; treatment needs a doctor's assessment. The adult supplement upper limit is 1,000 mg/day.

How oftenUse the recommended daily intake; the adult supplement upper limit is 1,000 mg/day.

Cautions

People with bleeding tendency or upcoming surgery should ask a clinician first.

High-dose supplementation is not stronger antioxidant benefit.

Interactions

  1. Anticoagulants / antiplatelets (high doses raise bleeding risk)
Common side effects

· Stomach discomfort

· Fatigue or headache (high doses)

Rare but important

· High doses may increase bleeding risk.

Long-term dependenceNot addictive; high long-term doses may raise bleeding risk.

Sources

These are institution pages you can check—not a certification of this ingredient.

Medical disclaimerThis page is compiled by the HerbBB editorial team for general health information only. It is not a substitute for advice from a doctor, pharmacist, or other qualified clinician. If you have a health condition, take medicines, or are pregnant or breastfeeding, speak with a professional first.