Why Your Magnesium Supplement Causes Stomach Issues

Why Your Magnesium Supplement Causes Stomach Issues

Ever taken a magnesium supplement for sleep or cramps. 

Only to spend the next morning in the bathroom? 

You're not alone. 

Magnesium is essential for over 300 functions in your body, but not all forms are easy on your stomach.

Here's the truth: the type and delivery method matter more than you think. 

Read further to know why some magnesium supplements cause stomach upset, which forms are gentler, and how liquid magnesium can make all the difference.

What Happens in the Gut When You Take Magnesium?

When your body can't absorb magnesium efficiently, the excess sits in your intestines. 

This pulls water in:

  • triggering diarrhea 
  • cramping
  • or that awful gurgling feeling 

The laxative effect depends heavily on the form you're taking and how much. Taking magnesium on an empty stomach or with caffeine? That makes it worse.

Which Magnesium Forms Are Harshest on Digestion?

Not all magnesium is created equal. Some forms are notorious for causing digestive chaos:

  • Magnesium Oxide absorbs poorly. Only about 4% and leaves most of the mineral unabsorbed in your gut. Hello, bathroom trips.
  • Magnesium Citrate is literally used as a laxative. Great for occasional constipation. Not great for daily supplementation.
  • Magnesium Sulfate (Epsom salt) is harsh and meant for short-term detox. It is not something you want to take regularly.
  • Magnesium Carbonate can cause bloating and gas. Especially if you're already sensitive.

Gentle, High-Absorption Forms for Daily Use

Thankfully, there are gentler options that won't wreak havoc on your digestive system.

  • Magnesium Glycinate is the MVP. It's highly bioavailable and binds with glycine, an amino acid that promotes calm. This form absorbs beautifully and is easy on your stomach.
  • Magnesium Malate pairs magnesium with malic acid for energy support. Mild on digestion, great for daytime use.
  • Magnesium Threonate supports brain health with minimal GI side effects. Perfect if you're focused on cognitive function.

Liquid Magnesium vs Capsules—What Makes the Difference?

Capsules take 30 to 60 minutes just to dissolve. That delay means more unabsorbed magnesium sitting in your gut, causing irritation.

Liquid Magnesium Glycinate starts absorbing immediately. Less waste. Less irritation. You can also adjust your dose easily and skip the pill-swallowing struggle. If capsules give you cramping or diarrhea, liquid is your answer.

Simple Tips for Tolerance and Better Results

Start small and build up gradually. Always take magnesium with food or after meals. Stay hydrated. Water helps distribute electrolytes evenly throughout your body. Avoid combining with caffeine or laxatives, and if you're taking higher doses, split them between morning and evening.

Why GLDN Root Liquid Magnesium Is Different

GLDN Root Liquid Magnesium Glycinate comes with Rejen®, a fulvic acid complex that enhances mineral transport and absorption. That means less leftover magnesium in your intestines and a lower risk of diarrhea.

It's cleanly formulated, made in the U.S., and clinically dosed. Users report better sleep, calmer moods, and relaxed muscles. Without the dreaded bathroom side effects.

Choose Magnesium That Works With—Not Against—You

If your magnesium supplement keeps upsetting your stomach, it's not your fault. It's the formula that might not suit you. Switching to liquid magnesium glycinate can deliver the same calm, sleep, and muscle relief. But minus the digestive discomfort.

Try GLDN Root Liquid Magnesium Glycinate with Rejen®. It is gentle, fast-absorbing, and cleanly formulated for real results.

 

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Raha Shafiei

Raha is a health and sports nutrition content strategist who specializes in writing science-backed articles for health & wellness brands & digital publishers.
She blends clinical research with real-world relevance to create content that educates and engages at the same time.
Her work focuses on supplements, sports nutrition, and performance wellness.

Frequently Asked Questions

Does liquid magnesium cause diarrhea?

Not typically, especially in glycinate form. It's much gentler than citrate or oxide.

Is magnesium glycinate easier on the stomach than citrate?

Absolutely. Glycinate is absorbed better and doesn't have the laxative effect.

How long does it take for liquid magnesium to start working?

You may feel calmer within hours. Sleep improvements usually show up in 5 to 7 days.

Can magnesium help both anxiety and constipation?

Yes, depending on the form. Glycinate helps anxiety without causing diarrhea, while citrate can help with constipation.

Can I take magnesium every day without side effects?

Yes, especially with gentle forms like glycinate.

GLDN Magnesium

GLDN Magnesium

$39.99
Designed to optimize your wellness and energy with better sleep and improved cortisol levels with Magnesium glycinate and Rejen Fulvic Acid 
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