Does Magnesium Citrate cause diarrhea?

Magnesium Citrate has a mild laxative effect and can cause loose stools, especially at higher doses. Start with a lower dose and increase gradually. If digestive issues persist, switch to Glycinate.

Can I take both forms together?

Yes, some people use both forms strategically - Citrate during the day for energy and general benefits, and Glycinate at night for sleep. Just monitor your total magnesium intake.

Which form has better absorption?

Both Glycinate and Citrate have good bioavailability (around 25-30%). Glycinate may have a slight edge in absorption, and is generally better tolerated by those with digestive sensitivity.

How much magnesium should I take daily?

Most adults need 310-420mg of elemental magnesium daily. Start with 200mg and increase as needed. Note that supplement labels show the total compound weight, not just elemental magnesium.

Comparison Article

Magnesium Glycinate
vs Magnesium Citrate

By SuppFindr Editorial · Updated January 23, 2026

Magnesium is involved in over 300 enzymatic reactions in the body, yet many people are deficient. The form you choose affects absorption, benefits, and side effects. We compare two of the most popular forms: Glycinate and Citrate.

How we compare data

We organize value (cost per unit of active), potency (amount per serving), and convenience (pills per serving) so you can compare like with like. This article focuses on products matched on serving size where that matters for a fair read. Numbers are factual inputs—not a single “best for everyone” ranking; your goals and clinician still come first.

Quick Verdict

Best ValueMagnesium Citrate

Best PotencyTie

Best ConvenienceMagnesium Glycinate

Choose based on your primary goal: Magnesium Glycinate for sleep, relaxation, and sensitive stomachs. Magnesium Citrate for general supplementation and digestive regularity. Both are excellent choices with good bioavailability.

Updated April 2026

Understanding the Options

Magnesium Glycinate

Magnesium Glycinate is magnesium bound to the amino acid glycine. This chelated form is highly bioavailable and gentle on the stomach. The glycine component adds calming effects, making it particularly popular for sleep and relaxation support.

Magnesium Citrate

Magnesium Citrate is magnesium bound to citric acid. It's well-absorbed and commonly used for general supplementation and digestive regularity. Citrate has a mild laxative effect, which can be beneficial or unwanted depending on your needs.

Key Differences

The main differences are side effect profiles and specific benefits. Glycinate is gentler on digestion and better for sleep/anxiety due to glycine. Citrate is more affordable and can help with constipation but may cause loose stools.

Pros / Cons

Magnesium Glycinate

Pros

Highly bioavailable
Gentle on stomach
Calming glycine component
Excellent for sleep support
No laxative effect

Cons

More expensive per mg
Larger pills due to glycine
May cause drowsiness

Magnesium Citrate

Pros

Good bioavailability
More affordable
Helps with constipation
Widely available
Smaller pill size

Cons

Can cause loose stools
Not ideal for sensitive stomachs
Less calming than glycinate
May interfere with some medications

Frequently Asked Questions

Magnesium Glycinate is generally considered best for sleep due to the calming effects of the glycine amino acid. Take 200-400mg about 30-60 minutes before bed for optimal results.

How we compare data

Quick Verdict

Understanding the Options

Magnesium Glycinate

Magnesium Citrate

Key Differences

Pros / Cons

Magnesium Glycinate

Pros

Cons

Magnesium Citrate

Pros

Cons

Frequently Asked Questions

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