Home Back

Vitamin E Conversion Calculator

Vitamin E Conversion Formula:

\[ mg = IU \times 0.67 \text{ (natural)} \] \[ mg = IU \times 0.9 \text{ (synthetic)} \]

IU

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Vitamin E Conversion?

Vitamin E conversion involves translating International Units (IU) to milligrams (mg) based on the type of vitamin E. Natural and synthetic forms have different conversion factors due to their varying biological activities.

2. How Does the Calculator Work?

The calculator uses the vitamin E conversion formulas:

\[ mg = IU \times 0.67 \text{ (natural vitamin E)} \] \[ mg = IU \times 0.9 \text{ (synthetic vitamin E)} \]

Where:

Explanation: The different conversion factors account for the varying biological activities and potencies of natural versus synthetic vitamin E forms.

3. Importance of Vitamin E Conversion

Details: Accurate conversion between IU and mg is essential for proper vitamin E supplementation, dosage calculation, and comparing different vitamin E products and formulations.

4. Using the Calculator

Tips: Enter the vitamin E amount in International Units (IU), select whether it's natural or synthetic vitamin E, and click calculate to get the equivalent amount in milligrams (mg).

5. Frequently Asked Questions (FAQ)

Q1: Why are there different conversion factors for natural and synthetic vitamin E?
A: Natural vitamin E (d-alpha-tocopherol) has higher biological activity than synthetic vitamin E (dl-alpha-tocopherol), requiring different conversion factors.

Q2: What's the difference between natural and synthetic vitamin E?
A: Natural vitamin E is derived from plant oils and has higher bioavailability, while synthetic vitamin E is manufactured and has slightly lower biological activity.

Q3: Which form of vitamin E is better?
A: Natural vitamin E is generally considered more effective due to its higher bioavailability and biological activity, though both forms have benefits.

Q4: How do I know if my vitamin E is natural or synthetic?
A: Check the supplement label - natural vitamin E is usually listed as "d-alpha-tocopherol" while synthetic is "dl-alpha-tocopherol."

Q5: Are there different recommended daily allowances for natural vs synthetic vitamin E?
A: Yes, due to different biological activities, the recommended amounts may vary. Always consult with a healthcare provider for personalized recommendations.

Vitamin E Conversion Calculator© - All Rights Reserved 2025