Can You take Magnesium Citrate and Magnesium Glycinate Together?

Understanding Magnesium: Why It Matters

Magnesium participates in more than 300 enzyme systems that help convert food into cellular energy, support normal muscle and nerve function, contribute to healthy bones, and maintain electrolyte balance. Many adults do not meet the recommended intake from diet alone, particularly older adults, whose absorption can be less efficient. Authoritative sources such as the National Institutes of Health’s Office of Dietary Supplements provide useful overviews of daily intakes and food sources.

What Is Magnesium Citrate?

Magnesium citrate is magnesium bound to citric acid. It is a well-absorbed form that many people select when they want a gentle nudge for regularity and comfortable digestion. It mixes readily in water when provided as a powder and is also available in capsules. Because it can have a loosening effect for some individuals at higher amounts, many people take magnesium citrate earlier in the day or adjust the amount to their comfort level.

What Is Magnesium Glycinate?

Magnesium glycinate pairs magnesium with the amino acid glycine. It is popular for being gentle on the stomach and for fitting well into evening routines aimed at unwinding. Many users appreciate its steady, comfortable absorption profile and the fact that it is less likely to cause loose stools compared with some other forms.

For reference only, these forms are available at Quantum Nutrition Labs: Magnesium Glycinate and Magnesium Powder.

Can You Take Magnesium Citrate and Magnesium Glycinate Together?

Yes. Using magnesium citrate and magnesium glycinate together is a common, reasonable approach for many adults. The forms are complementary: citrate is often chosen to support regularity and comfortable digestion, while glycinate is valued for gentleness and relaxation support. Combining them—within total daily amounts appropriate for you—can help personalize your intake to your goals.

Absorption, Timing, and How to Take Them

With meals or between meals?

Many people take magnesium with food to reduce the chance of stomach upset. Others tolerate it well between meals. If you’re combining forms, consider starting with lower amounts and taking them with a meal to gauge comfort.

Best time of day

• Magnesium citrate: Often taken in the morning or midday, especially if you appreciate its digestive nudge.
• Magnesium glycinate: Frequently used in the evening as part of a wind-down routine because glycine is associated with calm and relaxation.

Splitting your intake

Dividing your total daily magnesium into two or more servings can support steady absorption and comfort. For example, some adults take magnesium citrate with breakfast and magnesium glycinate with dinner.

Elemental magnesium matters

Different forms provide different amounts of elemental magnesium per serving. Always read labels to understand how much elemental magnesium you’re getting from each product so you can manage your total daily intake effectively.

How to Choose Citrate vs. Glycinate (or Both)

• If comfortable digestion is your priority: You may lean toward citrate.
• If gentleness and evening calm are priorities: Glycinate is often a go-to.
• If both benefits appeal: It is reasonable to include both forms, adjusting amounts and timing to your routine.

Your dietary pattern, stress level, activity level, and age can all influence your day-to-day needs. It’s wise to evaluate total magnesium from both food and supplements, and adjust gradually.

Safety, Amounts, and Interactions

How much magnesium do adults typically need?

Recommended Dietary Allowances (RDAs) for magnesium vary by age and sex. For most adults, they range roughly from about 310–320 mg/day for women and 400–420 mg/day for men, including food and supplements. Whole foods—such as leafy greens, nuts, seeds, legumes, and whole grains—are excellent foundation sources.

What about the tolerable upper intake level (UL)?

The UL for supplemental magnesium (from dietary supplements and medications, not counting food) for adults is commonly cited as 350 mg/day. Some individuals may use higher amounts short-term under professional guidance. Focus on your total intake, comfort, and personal response.

Common interactions and spacing tips

• Mineral and medication timing: Magnesium can interfere with the absorption of certain medications (for example, some thyroid medications, certain antibiotics, and bisphosphonates). Many practitioners suggest separating magnesium from such medications by at least 2 hours. Always follow your prescriber’s directions.
• Kidney considerations: Individuals with significant kidney impairment should consult their clinician before using magnesium supplements.
• Digestive sensitivity: If you’re sensitive, start low and increase gradually. Switching some of your intake to glycinate may be more comfortable than relying solely on citrate.

Product & Blog References

For reference only, products are available at QNL: Magnesium Glycinate and Magnesium Powder.

Related education on the QNL blog: Is Your Diet Missing Essential Trace Minerals? and Benefits of Natural Ways to Reduce Cortisol.

FAQs

1) Can you take magnesium citrate and magnesium glycinate together?

Yes. Many adults use both forms because their benefits are complementary. Start with modest amounts, observe how you feel, and adjust timing to your routine.

2) Is it better to take citrate in the morning and glycinate at night?

That pattern is common. People who value digestive regularity often place citrate earlier in the day, while glycinate fits naturally into evening wind-down routines.

3) Which absorbs better, citrate or glycinate?

Both are considered well-absorbed. Glycinate is frequently chosen for gentleness, while citrate is appreciated for its digestive support. Personal comfort can guide your choice.

4) Will magnesium citrate cause loose stools?

It can at higher amounts, especially in sensitive individuals. Adjust the amount, split doses, or balance with glycinate to find your comfort zone.

5) Can I take both forms at the exact same time?

Yes, you can. Some people prefer to separate them to match benefits with timing, but it is not required.

6) How much magnesium should I take in a day?

Total needs vary by age and sex. Check the RDA ranges and consider your diet. For supplements, many practitioners recommend staying aware of the 350 mg/day UL for supplemental magnesium unless otherwise directed by a professional.

7) Do I need to take magnesium with food?

Taking magnesium with a meal may improve comfort for some people. If you tolerate it well, between-meal dosing is also acceptable.

8) Are there medications I should not combine with magnesium?

Magnesium can interfere with absorption of certain medications. Separate dosing by at least 2 hours or follow your prescriber’s instructions.

9) What if I have a sensitive stomach?

Begin with lower amounts and increase gradually. Many sensitive individuals favor glycinate for its gentle profile and use smaller amounts of citrate.

10) Do older adults need more magnesium?

Absorption can be less efficient with age, and some older adults do not meet recommended intakes from diet alone. Food first, then consider supplements as appropriate for your needs.

References

• NIH Office of Dietary Supplements. Magnesium — Consumer Fact Sheet: https://ods.od.nih.gov/factsheets/Magnesium-Consumer/
• NIH Office of Dietary Supplements. Magnesium — Health Professional Fact Sheet: https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/
• NCCIH. Magnesium: https://www.nccih.nih.gov/health/magnesium
• Coudray C, et al. Studies of magnesium bioavailability from different organic salts in rats. Magnes Res. 2005. PubMed: https://pubmed.ncbi.nlm.nih.gov/16630201/

Conclusion

Magnesium citrate and magnesium glycinate can be taken together, and many adults find this pairing helpful when they want comfortable digestion alongside a gentle, evening-friendly option. Focus on total daily elemental magnesium, align timing with your routine, and make changes gradually so you can notice how you feel. If you use prescription medications or have a medical condition, discuss timing and amounts with your healthcare professional.