health
Diarrhea
Adverse effectDiarrhea is an adverse health outcome involving digestive upset and is treated here as an unwanted effect rather than a benefit. It may be reported in connection with interventions such as Magnesium, CBD (Cannabidiol), Vitamin B9 (Folate), and Lemon Balm (Melissa).
A concise starting point for understanding diarrhea in a health context.
These are research findings, not promises. Most options have little evidence, and results differ from person to person.
What can cause it
How likely each one is to cause it, most likely first.
FastingpracticeUnclear
Based on 7 studies. Strongest study: a pooled analysis of several trials.
Pooled analyses reported diarrhea in fasting studies, including one analysis pooling randomized trials. The findings do not quantify its frequency.
Open the Fasting pageAcupuncturepracticeUnclear
Based on 3 studies. Strongest study: a pooled analysis of several trials.
Pooled analyses of randomized trials reported diarrhea, and a systematic review reported mild gastrointestinal symptoms that included diarrhea and vomiting, in studies of people with ankylosing spondylitis.
Open the Acupuncture pageTai ChipracticeUnclear
Based on one study. Strongest study: a pooled analysis of several trials.
A pooled analysis whose study designs were not recorded listed diarrhea among reported effects during Tai Chi practice.
Open the Tai Chi pageNasal Irrigation (Neti Pot)practiceUnclear
Based on one study. Strongest study: a systematic review of studies.
A pooled analysis of randomized trials involving the common cold and acute sinusitis reported gastrointestinal complaints that included diarrhea, abdominal pain and nausea.
Open the Nasal Irrigation (Neti Pot) pageBrisk WalkingpracticeUnclear
Based on one study. Strongest study: a randomized controlled trial.
A randomized trial involving 110 people with prostate cancer reported diarrhoea and nausea.
Open the Brisk Walking pageTurkey TailsupplementUnclear
Based on one study. Strongest study: a pooled analysis of several trials.
Loose stools or diarrhea can occur with oral Turkey Tail polysaccharide preparations.
Open the Turkey Tail pageCoffee EnemapracticeUnclear
Based on one study.
Coffee enemas can provoke loose stools or diarrhea-like evacuation, with potentially substantial fluid loss, especially when repeated.
Open the Coffee Enema pageChagasupplementsimple.meter.userReports
Based on one study.
Open the Chaga page
The expert view shows every study, dose protocol and source.
What can cause it
Interventions reported to bring this on8 listedHighest probability
- →PracticesFastingCertaintyLowSourceClinical7 other sources
Pooled analyses reported diarrhea in fasting studies, including one analysis pooling randomized trials. The findings do not quantify its frequency.
Who was studied
- Healthy people and patients
- Diabetes Type2
- Fatty Liver Nafld
- Metabolic Syndrome
- Overweight
- Prediabetes
Open FastingStudy result
Diarrhoea
- →PracticesAcupunctureCertaintyLowSourceClinical3 other sources
Pooled analyses of randomized trials reported diarrhea, and a systematic review reported mild gastrointestinal symptoms that included diarrhea and vomiting, in studies of people with ankylosing spondylitis.
- →PracticesTai ChiCertaintyLowSourceClinical1 other source
A pooled analysis whose study designs were not recorded listed diarrhea among reported effects during Tai Chi practice.
- →PracticesNasal Irrigation (Neti Pot)CertaintyLowSourceClinical1 other source
A pooled analysis of randomized trials involving the common cold and acute sinusitis reported gastrointestinal complaints that included diarrhea, abdominal pain and nausea.
Who was studied
- People with a condition
- Common Cold
- Sinusitis Acute
Open Nasal Irrigation (Neti Pot)Study result
Gastrointestinal complaints (diarrhea, abdominal pain, nausea)
- →PracticesBrisk WalkingCertaintyLowSourceClinical1 other source
A randomized trial involving 110 people with prostate cancer reported diarrhoea and nausea.
Who was studied
- People with a condition
- Prostate Cancer
Open Brisk WalkingStudy result
diarrhoea and nausea
- →PracticesCoffee EnemaCertaintyLowSourceReference knowledge1 other source
Coffee enemas can provoke loose stools or diarrhea-like evacuation, with potentially substantial fluid loss, especially when repeated.
Open Coffee EnemaStudy result
Coffee enemas commonly provoke loose stools or diarrhea-like evacuation and may cause substantial fluid loss, especially when repeated.
- →SupplementsChagaCertaintyLowSourceAnecdotal1 other source
Some users report loose stools or diarrhea, possibly due to fiber content or digestive irritation.
Very low probability(1)(1)(0)
- →SupplementsTurkey TailCertaintyVery lowSourceClinicalModerate effect1 other source
Loose stools or diarrhea can occur with oral Turkey Tail polysaccharide preparations.
How big is the effect
Moderate effectA clear difference on average.
Open Turkey TailWho was studied
- People with a condition
- Colon Cancer
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Diarrhea is an adverse health outcome involving digestive upset and is treated here as an unwanted effect rather than a benefit. It may be reported in connection with interventions such as Magnesium, CBD (Cannabidiol), Vitamin B9 (Folate), and Lemon Balm (Melissa). The evidence may differ between these interventions, so the overall term describes the outcome itself, not a single cause or a universal response.
How interventions help
These findings describe diarrhea as an unwanted effect of several interventions, not as a treatment approach. The circumstances differ: some reports connect symptoms with starting an intervention or increasing its dose, while repeated coffee enemas may produce loose stools and substantial fluid loss. This means that route, formulation, and pattern of use can matter as much as the ingredient itself.
The reported CBD findings involved both oral and transdermal use, with oral amounts of 5-50 mg/kg/day, transdermal amounts of 195-390 mg, and durations of 3-16 weeks. These ranges do not establish a single threshold at which diarrhea occurs. Magnesium findings also suggest that formulation and amount may influence tolerability: diarrhea was reported in 11-37% of Mg groups, occurred in 5/48 people receiving Mg citrate in one trial, and was more prevalent with MgO 800-1200 mg/d in another.
Other interventions were associated with diarrhea across shorter clinical observations or reference-based safety descriptions. The overall pattern is therefore not one uniform effect: some findings involve a specific dose or formulation, while others describe a recognized gastrointestinal reaction without enough information to define timing or persistence.
Choosing guidance
When choosing among these options, first separate how the symptom was identified from how consistently it has been observed. Clinical studies provide human tolerability information, while pharmacology references, anecdotal reports, and theoretical explanations may be less direct. The listed evidence generally concerns whether diarrhea occurred during use, not whether an option is suitable for treating diarrhea or for a particular underlying condition.
Dose and timing may matter. Several descriptions associate loose stools with higher doses, larger single doses, concentrated preparations, or the period when an option is started or increased. A finding from a short study period also does not establish how well an option will be tolerated during longer use. Where duration and dose are reported, use those details to judge how closely the study resembles the intended pattern rather than assuming the same experience across products or people.
The human evidence is not uniformly consistent: some options have conflicting findings, and others are supported mainly by limited studies or reference-based reports. Most entries do not specify a health status, so the results may not clearly apply to people with a particular medical condition, existing gastrointestinal sensitivity, or a different reason for taking the product. For someone prioritizing predictable gastrointestinal tolerability, options with human evidence and clearly described study conditions are easier to interpret than options supported mainly by anecdotal, theoretical, or general reference information.