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Magnesium counter and tracker app icon

Magnesium Recommended Dietary Allowance (RDA)

Magnesium RDA depends on age and sex and whether you are pregnant or breastfeeding, see US Dietary Guidelines for Americans 2020–2025. Excessive intake may have adverse effects.


Use our free Key Nutrients RDA Calculator app to calculate your RDA and use our Magnesium Counter & Tracker to ensure an adequate magnesium intake to benefit from its numerous effects.


Magnesium is needed for healthy nerves, bones, muscles, anti-inflammatory activity, and metabolism

  • Magnesium plays a key role in hundreds of metabolic reactions and bone formation, but many people worldwide do not consume enough.
  • Use this app to ensure you consume enough magnesium, especially if you are pregnant (to optimise the health of your child), aging (to protect against frailty and maintain strong bone and muscle) or diabetic (to protect against diabetic neuropathy). 


Infographic: Key roles of a healthy magnesium intake and effects of magnesium deficiency