What is happening. Magnesium and glycerol can both cause GI looseness in some users near exercise.
Mechanism. Additive osmotic or motility effects.
Recommendation. Separate doses if GI symptoms occur before training.
Supplement × Supplement·timing-sensitive·Insufficient evidence
Magnesium and glycerol can both cause GI looseness in some users near exercise.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. Magnesium and glycerol can both cause GI looseness in some users near exercise.
Mechanism. Additive osmotic or motility effects.
Recommendation. Separate doses if GI symptoms occur before training.
Effect on the composite score
If both Glycerol and Magnesium Glycinate are in the same stack, this pair applies −5 to your Stack Score (per scored timing-sensitive row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
Every claim on this page is cited. PMIDs link straight to PubMed.
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NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.