Supplement × Supplement·a caution·Insufficient evidence
Both can affect bowel habits; magnesium may loosen stools while PHGG changes stool water and fermentation.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. Both can affect bowel habits; magnesium may loosen stools while PHGG changes stool water and fermentation.
Mechanism. Additive GI motility and stool-water effects.
Recommendation. Adjust doses if loose stools, cramping, or urgency occur.
Effect on the composite score
If both Magnesium Glycinate and Partially Hydrolyzed Guar Gum (Sunfiber) are in the same stack, this pair applies −5 to your Stack Score (per scored caution 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.
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