From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Supplement
Last verified
June 4, 2026
CautionInsufficient evidence
What is happening. Both can change bowel habits; magnesium can loosen stools while inulin increases fermentation.
Mechanism. Additive osmotic, motility, and fermentation effects in the gut.
Recommendation. Reduce one or both if diarrhea, cramping, or urgency develops.
Stack Score
How it moves the number.
Effect on the composite score
If both Inulin and Magnesium Glycinate 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.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1Birkeland E et al. Inulin-type fructans RCT. European Journal of Nutrition. 2020.Needs sourceNo link