Magnesium is an essential mineral that plays a critical role in your health, from muscle relaxation and energy production to improved sleep and reduced stress. However, not all magnesium supplements are created equal. Many contain multiple magnesium compounds with varying levels of bioavailability—the amount your body can actually absorb and use.

Confused about which magnesium supplement is right for you?
Our Magnesium Supplement Calculator takes the guesswork out of supplementation. It allows you to:

• Evaluate the bioavailability of up to four magnesium compounds in your supplement.

• Calculate the total bioavailable magnesium in a single dose.

• Get personalised recommendations for loading and maintenance doses.

Whether you are managing a magnesium deficiency, optimising your health, or comparing supplements, this tool is designed to help you make informed decisions.

How to Use This Information for Better Supplementation

Once you have calculated the total bioavailable magnesium in your supplement, consider these next steps:

1. Compare Supplements: Use the calculator results to assess whether your current magnesium supplement offers good value in terms of bioavailability per dollar. If not, consider switching to one that includes highly absorbable forms, such as magnesium glycinate (chelate), citrate, or malate.

2. Adjust Your Dosage: Use the loading and maintenance dose recommendations to fine-tune your daily intake. If you are correcting a deficiency, follow the loading dose for 4–6 weeks, then transition to a maintenance dose.

3. Monitor Your Symptoms: Track how you feel after adjusting your magnesium intake. Improved sleep, reduced muscle cramps, and better stress management are signs that your magnesium levels are improving.

Why Bioavailability Matters

Bioavailability is the key to effective magnesium supplementation. Some magnesium compounds, such as magnesium oxide, may seem cost-effective due to their high elemental magnesium content, but they are poorly absorbed by the body. In contrast, forms like magnesium glycinate or magnesium citrate offer superior absorption, ensuring you get the most out of your supplement.

Learn More About Magnesium Deficiency

If you want to dive deeper into the symptoms, causes, and treatment strategies for magnesium deficiency, read our comprehensive guide on magnesium supplementation. With the right knowledge and tools like our calculator, you can optimise your magnesium intake for better health and vitality.

DISCLAIMER: The advice on this site is not intended to diagnose and/or treat medical conditions or act as medical advice. Content is intended as and presented for information and education purposes. People who live an active and healthy lifestyle, including a balanced diet, may not experience deficiencies and may not need to supplement. If in doubt, consult your primary health care practitioner.