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Illustrative opened mangosteen fruit with thick purple pericarp

Natural Home Cures · Mangosteen science

Vitamin E
& Mangosteen

One familiar vitamin.
A family of distinct forms.

Tocopherols · Membranes · Pericarp research
Explore the tocopherol story ↓
Illustrative bowl of sunflower seeds on warm limestone
A familiar food connectionSmall seeds.
A fat-soluble vitamin.Sunflower seeds are a dietary vitamin E source. Mangosteen’s pericarp has its own tocopherol profile.

Vitamin E is a family of related compounds, but the body uses one form to meet its nutritional requirement. This distinction is essential when reading the different tocopherols measured in mangosteen pericarp.

ETocopherols + tocotrienols
A family of compounds.

01 · Begin with the essentials

Which Form Meets the Body’s Needs?

Vitamin E is a family of fat-soluble compounds with antioxidant activity. Alpha-tocopherol is the form the body preferentially retains and uses to meet its vitamin E requirement.(1)

02 · One name · two groups

Vitamin E Is
More Than One Substance.

Tocopherols

αβγδ

Alpha, beta, gamma and delta forms.

Tocotrienols

αβγδ

Another four naturally occurring forms.

The eight forms differ in biological activity. They cannot simply be added together and counted as an equal amount of alpha-tocopherol.(1)

Conceptual phospholipid membrane illustrating a cell boundary
Conceptual illustration, not microscopy.

03 · The membrane connection

Protecting the Fats
in Cell Membranes.

Cell membranes contain fats that can be damaged by oxidation. Vitamin E helps protect those fats as part of the body’s antioxidant defenses.(1)

Membrane fatsOxidation challengeAntioxidant defenses

Nutrition in focus

Vitamin E in Eye-Health Research

The AREDS studies tested combinations of antioxidants and minerals in people at certain stages of age-related macular degeneration. Vitamin E was one ingredient. The benefit belongs to the tested formula and patient groups, rather than vitamin E alone.(4)

Deficiency is uncommon in healthy people who absorb fats normally. For everyday nutrition, getting enough vitamin E is the aim; more of one antioxidant does not automatically provide more benefit.(1)

Nuts, seeds and oils are familiar dietary sources of vitamin E.

04 · Vitamin E across the diet

Familiar Foods. Naturally Occurring Fats.

Nuts, seeds and vegetable oils are important vitamin E sources. Other plant foods contribute, too.(1)

Illustrative hulled sunflower seeds

Sunflower seeds

A source of alpha-tocopherol

Illustrative nuts and seeds on limestone

Nuts

Almonds and other varieties

Illustrative spinach and leafy greens

Leafy greens

Spinach contributes vitamin E

Illustrative whole and sliced kiwi fruit

Kiwifruit

One of several fruit sources

Which forms have been measured in mangosteen pericarp?

05 · Freeze-dried pericarp · 2023 study

Three Tocopherols.
One Research Sample.

A 2023 study identified three tocopherols in freeze-dried mangosteen pericarp: alpha, beta and gamma. The chart compares their amounts in that research sample.(2)

≈9.9 mg

Total measured tocopherols

Per 100 g of the dry study material. This is a sum of different forms, not 9.9 mg of alpha-tocopherol.

06 · Two different questions

Why the Largest Bar Is Not the Vitamin E Requirement

β

Beta-tocopherol

Beta-tocopherol was the most abundant of the three forms measured in this pericarp sample.(2)

α

Alpha-tocopherol

Alpha-tocopherol is the form used to define the amount of vitamin E people need.(1)

Natural Home Cures mangosteen capsules and fruit on sunlit limestone

07 · The whole-pericarp perspective

Whole Mangosteen Pericarp, Freeze-Dried

Our Freeze-Dried Rich Pericarp Mangosteen Capsules begin with the thick outer pericarp of Garcinia mangostana.

Pericarp research describes tocopherols alongside organic acids, fatty acids and other plant constituents. After harvest, our pericarp is freeze-dried and prepared for capsules.(2), (3)

Explore our mangosteen →
The research behind this article

Source References

4 sources Show referencesHide references
  1. 01
    Nutrition referenceVitamin E

    National Institutes of Health · Office of Dietary Supplements

    Full citation

    National Institutes of Health, Office of Dietary Supplements. “Vitamin E — Fact Sheet for Health Professionals.”

    View source ↗
  2. 02
    Pericarp composition studyChemical Composition and In Vitro Bioactive Properties of Mangosteen Pericarp

    Albuquerque et al. · Foods 12(5):994 · 2023

    Full citation

    Albuquerque BR, Dias MI, Pinela J, et al. “Insights into the Chemical Composition and In Vitro Bioactive Properties of Mangosteen (Garcinia mangostana L.) Pericarp.” Foods. 2023;12(5):994.

    View source ↗
  3. 03
    Mangosteen reviewPhytochemicals and Bioactive Properties of Mangosteen

    Yan et al. · Food Bioscience 79:108569 · 2026

    Full citation

    Yan M, Hou W, Wang H, Beyatli A, Arshad MS, Suleria HAR. “Phytochemicals and Bioactive Properties of Mangosteen (Garcinia mangostana L.): A Comprehensive Review.” Food Bioscience. 2026;79:108569.

    View source ↗
  4. 04
    Nutrition researchNational Eye Institute: AREDS/AREDS2 Clinical Trials
    View source ↗