Skip to content

How much magnesium should I add to my water for optimal health?

5 min read

According to the National Institutes of Health, nearly half of Americans do not consume enough magnesium from their diet alone. This has led many to wonder: how much magnesium should I add to my water? The ideal amount varies by individual needs and the form of magnesium used. The Tolerable Upper Intake Level from supplements is typically 350 mg for adults.

Quick Summary

The ideal amount of magnesium to add to water depends on your health goals and the form used. Options range from simple powders like citrate or glycinate for daily wellness to specific protocols for targeted relief. Understanding bioavailability and potential side effects is crucial for safe and effective supplementation.

Key Points

  • Start Low, Go Slow: When adding magnesium to water, begin with a lower amount and increase gradually to gauge your body's tolerance and avoid digestive issues.

  • Choose the Right Form: Use highly bioavailable and soluble forms like magnesium citrate, glycinate, or chloride for best results when mixed with water.

  • Consider Your Goal: Use calming forms like glycinate for sleep and anxiety, or mildly laxative forms like citrate or oxide for occasional constipation.

  • Stay Within Limits: Do not exceed the Tolerable Upper Intake Level (UL) of 350 mg of supplemental magnesium per day for adults without medical advice.

  • Consult a Professional: People with kidney disease or other health conditions should always consult a doctor before supplementing with magnesium.

  • DIY Options Available: For maximum control and bioavailability, you can create your own magnesium bicarbonate water using magnesium hydroxide and carbonated water.

In This Article

Understanding Your Magnesium Needs

Magnesium is a vital mineral involved in over 300 enzymatic reactions in the body, influencing everything from muscle and nerve function to bone health and energy production. While a balanced diet rich in leafy greens, nuts, and seeds can provide a good amount, many people still fall short of the Recommended Dietary Allowance (RDA). This makes supplementing with magnesium water an appealing option for many looking to boost their intake.

Factors Influencing the Amount to Add

Determining how much magnesium to add to your water isn't a one-size-fits-all answer. The ideal amount depends on several factors:

  • Existing Intake: Consider how much magnesium you already get from your diet. Your total daily intake (food + supplements) should stay within recommended guidelines.
  • Health Goals: Different amounts and types of magnesium are suited for different purposes. For instance, a higher amount might be used for occasional constipation, while a lower, daily amount is better for general wellness or sleep.
  • Form of Magnesium: Bioavailability, or how well your body can absorb a mineral, differs significantly between magnesium forms. Highly soluble forms like citrate are absorbed better than cheaper, less soluble forms like oxide.
  • Kidney Health: If you have kidney issues, your ability to excrete excess magnesium is impaired, increasing the risk of toxicity. Always consult a doctor in this case.

Types of Magnesium for Adding to Water

Choosing the right form is crucial for safety and effectiveness. Here are some of the most common types suitable for water:

High-Bioavailability, Water-Soluble Forms

  • Magnesium Citrate: Highly bioavailable and often used in powdered form, it has a mild laxative effect at higher amounts. Ideal for a nightly relaxation drink or addressing occasional constipation.
  • Magnesium Glycinate: Chelate bound to the amino acid glycine, it is highly absorbable and has a calming effect, making it popular for improving sleep and anxiety. Less likely to cause digestive issues than citrate.
  • Magnesium Chloride: Found in liquid drops or powder, it is well-absorbed and useful for hydration.

Lower-Bioavailability Forms

  • Magnesium Oxide: Contains a high percentage of elemental magnesium but is poorly absorbed, making it mostly effective as a laxative rather than for boosting overall magnesium levels.
  • Magnesium Bicarbonate: Can be made at home by combining magnesium hydroxide powder with carbonated water, creating a highly bioavailable and gentle form.

General Considerations for Adding Magnesium to Water

For most healthy adults seeking general wellness, a daily supplemental amount of elemental magnesium within the Tolerable Upper Intake Level is often considered. It is generally recommended to start with a lower amount and gradually increase to assess your body's tolerance and avoid side effects like diarrhea. The Tolerable Upper Intake Level (UL) from supplements is 350 mg for adults. Spreading your daily intake throughout the day may improve absorption.

For example, you can create a simple electrolyte drink by adding a scoop of magnesium citrate powder to your water bottle and sipping it throughout the day. Alternatively, for a calming effect, taking magnesium glycinate an hour or two before bed can be beneficial.

Magnesium Water for Specific Needs

For Sleep and Relaxation

  • Timing: Typically taken 1–2 hours before bedtime.
  • Best Form: Magnesium glycinate is a common choice due to its calming properties and high bioavailability.
  • Application: Mix a scoop of powdered glycinate into warm water for a bedtime drink.

For Occasional Constipation Relief

  • Approach: Higher amounts may be required for a laxative effect. Follow label instructions for products designed for this purpose.
  • Best Form: Magnesium citrate or oxide, both known for their osmotic laxative effects.
  • Application: Drink the solution with a full 8 oz glass of water to promote bowel movements. Use only for occasional constipation, not daily.

For Exercise and Cramp Relief

  • Approach: Regular daily intake of magnesium may help prevent muscle cramps. Some studies have shown benefits for preventing leg cramps with consistent magnesium intake.
  • Best Form: Magnesium citrate, malate, or glycinate are good options for general muscle support and recovery.
  • Application: Add a small amount of powder to a homemade electrolyte drink for better hydration and muscle function.

DIY Magnesium Water Considerations

Creating your own magnesium water is straightforward, particularly if you use an easy-to-dissolve powder.

Simple DIY Magnesium Water (for Daily Intake) Ingredients:

  • Water
  • Magnesium citrate or glycinate powder (refer to product labeling for suggested amounts)
  • Pinch of sea salt or Himalayan pink salt (for trace minerals)
  • Optional: lemon or lime juice for flavor

Instructions:

  1. Fill a bottle with water.
  2. Add the magnesium powder and salt according to product instructions.
  3. Shake vigorously until the powder is fully dissolved.
  4. Add a splash of lemon or lime juice to taste, if desired.
  5. Sip throughout the day.

Comparison of Magnesium Forms for Water

Feature Magnesium Citrate Magnesium Glycinate Magnesium Oxide Magnesium Bicarbonate (DIY)
Bioavailability High Very High Low Very High
Effect Relaxing, laxative at high amounts Calming, relaxing Laxative, less for daily intake Relaxing, gentle on stomach
Best For Daily intake, occasional constipation Sleep, anxiety, sensitive stomachs Occasional constipation only High-bioavailability, DIY enthusiasts
Side Effects Diarrhea at high amounts Mildest of the options Diarrhea, stomach upset Requires carbonation, slight laxative effect
Cost Medium Higher Low Requires equipment (Soda Stream)

Potential Risks and Side Effects

While magnesium is generally safe, excessive intake, especially from supplements, can lead to side effects. Symptoms of hypermagnesemia (too much magnesium) can include diarrhea, nausea, low blood pressure, muscle weakness, and fatigue. It is difficult to reach toxic levels from dietary sources alone, as the kidneys typically excrete any excess. However, individuals with impaired kidney function are at greater risk. Always stay within the recommended daily amount for supplements and consult a doctor if you have underlying health conditions.

Conclusion

Adding magnesium to your water is an efficient way to boost your daily intake, especially if you fall short of dietary goals. The amount you should add depends on your specific health objectives and the form you choose. For daily, general wellness or relaxation, highly bioavailable forms like magnesium citrate or glycinate within the recommended supplemental range are effective and easy to use. For targeted issues like occasional constipation, higher amounts of magnesium citrate or oxide can be used, but with caution and according to product instructions. For those seeking maximum absorption and comfort, a DIY magnesium bicarbonate recipe is an option. Regardless of your chosen method, start with a lower amount, pay attention to how your body responds, and never exceed the supplemental upper limit of 350 mg daily without medical supervision.

By carefully considering your needs and the properties of different magnesium forms, you can create a personalized magnesium water regimen that supports your health and hydration goals. As with any supplement, a conversation with a healthcare provider is recommended before starting, especially if you have pre-existing health conditions.

Frequently Asked Questions

The best forms of magnesium to add to water are typically those with high bioavailability and solubility. Magnesium citrate is a common, well-absorbed powder. Magnesium glycinate is excellent for relaxation and is gentle on the stomach. For maximum absorption and a milder taste, DIY magnesium bicarbonate made from magnesium hydroxide and carbonated water is a great option.

No, you should not add magnesium oil (which is a magnesium chloride solution for topical use) or Epsom salts (magnesium sulfate) to your drinking water. Epsom salts are primarily used for bathing and have a very strong laxative effect when taken orally. Use only food-grade magnesium powders or liquid supplements designed for internal consumption.

To avoid the laxative effect, choose a form of magnesium known to be gentle on the digestive system, such as magnesium glycinate or magnesium malate. Additionally, start with a lower amount and spread your intake throughout the day rather than taking a large amount all at once.

To make magnesium bicarbonate, you will need a source of carbonated water (like a Soda Stream) and food-grade magnesium hydroxide powder. You carbonate cold water, quickly add a small amount of magnesium hydroxide powder, and shake until the water becomes clear. The resulting solution can then be added to drinking water.

For most healthy individuals, it is safe to add magnesium to water daily, provided the total supplemental intake stays below the 350 mg Tolerable Upper Intake Level. This practice can help maintain adequate magnesium levels. It is crucial to monitor for side effects like diarrhea and to consult a doctor if you have kidney or other health issues.

The time it takes to feel the effects can vary. For issues like muscle cramps or anxiety, some may notice an improvement within a week of consistent, daily intake. Effects on digestion can be felt much sooner, within hours, especially with laxative forms. Consistent intake is key for long-term benefits.

Yes, you can add most magnesium powders to tap, filtered, or bottled water. However, some forms like magnesium hydroxide require carbonated water to become highly absorbable magnesium bicarbonate. Ensure your water is cold for optimal mixing and flavor.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.