What is the difference between RDA and AI?

RDA (Recommended Dietary Allowance) meets needs of 97.5% of healthy individuals; AI (Adequate Intake) is used when RDA cannot be determined due to insufficient evidence.

Which micronutrients are most commonly deficient?

Global deficiencies are most common for iron, zinc, vitamin D, vitamin B12, folate, iodine, and magnesium — particularly in restrictive diets or aging populations.

Micronutrient Intake DRI Comparison

Compare daily micronutrient intake against Dietary Reference Intakes (DRI) including RDA, AI, EAR, and UL values for vitamins and minerals.

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Iron Absorption Factors

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Vitamin D IU to 25(OH)D

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Dietary Zinc Bioavailability

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Micronutrient Intake DRI Comparison

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Frequently Asked Questions

What is the difference between RDA and AI?

Which micronutrients are most commonly deficient?