Remedy Routes
    Digestive
    Strong Evidence

    Intestinal Motility

    Healthy bowel movement frequency and regularity.

    TL;DR

    Fibre, fluid, movement and a consistent morning routine fix most sluggish transit. Magnesium is the most dependable supplemental lever when those are already in place.

    Why It Matters

    Slow transit causes constipation, bloating and discomfort, and chronically strained defecation contributes to haemorrhoids and pelvic floor problems. New-onset change in bowel habit in an adult over 45 warrants medical assessment before self-treatment.

    How to Measure

    Biomarkers

    Bowel movements per week
    Bristol stool scale
    Straining and completeness
    Fibre intake
    Fluid intake

    Optimization Protocol

    Build to 25-35 g of fibre daily from mixed sources, increasing gradually with fluid to avoid bloating. Walk daily, and use the gastrocolic reflex by allowing unhurried toilet time after breakfast with feet elevated. Magnesium citrate or oxide at 200-400 mg in the evening is the most reliable supplemental step. Escalate to an osmotic laxative under medical advice if unresolved.

    Supporting Supplements

    Peppermint Oil

    Oil
    Mixed evidence
    Moderate Evidence

    Enteric-coated peppermint oil relieves IBS pain and bloating but relaxes rather than accelerates motility.

    Probiotics

    Probiotic
    Mixed evidence
    Moderate Evidence

    Some probiotic strains speed transit modestly, but effects are strain-specific rather than a class benefit.

    Magnesium

    Mineral
    Strong yes
    Strong Evidence

    Magnesium is the most reliable supplement for slow transit, working osmotically within a day or two.

    Supporting Research

    Frequently Asked Questions

    What is normal bowel frequency?
    Anywhere from three times daily to three times weekly, provided stools pass comfortably. Consistency matters more than a fixed number.
    Which fibre helps sluggish transit?
    Psyllium at 5-10 g/day improves stool form and frequency with good evidence. Increase gradually with fluid to limit bloating.
    Does magnesium help?
    Magnesium oxide or citrate at 200-400 mg draws water into the bowel and is a common osmotic option. Avoid regular use in kidney impairment.
    Do probiotics improve motility?
    Some strains, notably Bifidobacterium lactis, modestly increase stool frequency in constipation trials. Effects are strain-specific and small.
    What about senna and other stimulants?
    They work quickly but are best used short term. Ongoing dependence should prompt review of the underlying cause.
    When should slow transit be investigated?
    New constipation after age 50, bleeding, weight loss, anaemia, vomiting or a family history of bowel cancer needs prompt assessment.

    Typical Timeframe

    1-4 weeks

    Research Summary

    Studies5
    Supplements3
    Evidence
    Strong Evidence

    My Notes

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.