Crohn's Disease

Crohn's Disease is a digestive health condition. In this reference, it is considered through outcomes such as remission and clinical symptoms, including whether supportive options may affect them.

A focused look at Crohn's Disease and its place in digestive health.

2What may help
1What to avoid

This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.

What may help

None of these options has good evidence yet. Best evidence first.

2 options:2 not enough evidence

What studies foundSize of effect

FastingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
In a randomized trial of 97 adults with mild-to-moderate Crohn's disease, clinical response, clinical remission and fecal calprotectin improved.
Open the Fasting page
Mindfulness MeditationpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
A multicenter RCT involving 142 people with IBD and elevated distress found reduced psychological distress and improved well-being.
Open the Mindfulness Meditation page

May not suit people with this condition

Supplements and practices linked to problems for people with this condition.

Coffee EnemapracticeUnclear
In one small trial, the eligibility criteria and discussion stated that Coffee Enema should not be used in people with Crohn's Disease. The direct irritation and inflammation may raise the risk of severe colitis or bowel perforation.
Open the Coffee Enema page

The expert view shows every study, dose protocol and source.

What may help

Interventions recorded as helping with this condition2 listed

The best we have, but the evidence is still weak

PracticesFastingCertaintyLowSourceClinical
In a randomized trial of 97 adults with mild-to-moderate Crohn's disease, clinical response, clinical remission and fecal calprotectin improved.
Who was studied
People with a condition
Crohns Disease
Study result
Clinical response, clinical remission and fecal calprotectin improved in adults with mild-to-moderate Crohn's disease in this RCT.
Open Fasting
→
PracticesMindfulness MeditationCertaintyLowSourceClinical
A multicenter RCT involving 142 people with IBD and elevated distress found reduced psychological distress (HADS, d=-0.61, p<.001) and improved well-being.
Who was studied
People with a condition
Study result
Multicenter RCT (n=142) showing significant reduction in psychological distress (HADS, d=-0.61, p<.001) and improved well-being in IBD patients with elevated distress.
Open Mindfulness Meditation
→

What to avoid

Interventions recorded as making it worse1 listed

Highest probability

PracticesCoffee EnemaCertaintyLowSourceClinical
In one small trial, the eligibility criteria and discussion stated that Coffee Enema should not be used in people with Crohn's Disease. The direct irritation and inflammation may raise the risk of severe colitis or bowel perforation.
Who was studied
Healthy people
Study result
Exclusion criteria and discussion state that coffee enema should not be performed in patients with Crohn's disease.
Rationale
Coffee enemas can provoke severe colitis and bowel perforation in patients with Crohn's disease due to the inflammatory nature of the condition and the direct irritant effect of coffee.
Open Coffee Enema
→

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

Crohn's Disease is a digestive health condition. In this reference, it is considered through outcomes such as remission and clinical symptoms, including whether supportive options may affect them. These outcomes do not describe every aspect of the condition, and findings may not apply equally to every person or treatment situation. Anyone considering options for Crohn's Disease should discuss them with a clinician.

Evidence-backed options

The evidence for options associated with Crohn's disease is limited overall. Dietary fiber, Green Tea Extract (EGCG), Magnesium, and Vitamin B2 (Riboflavin) are associated with low probability findings, supported by either clinical evidence or a review. The reported findings suggest possible improvements in remission, disease-related scores, symptoms, or related measures, but they do not establish a consistent treatment effect. Curcumin has very low probability based on theoretical evidence rather than clinical findings.

The studies do not provide a common treatment duration or clear time to benefit across these options. One clinical study examined Vitamin B2 (Riboflavin) supplementation for 3 weeks and reported mixed anti-inflammatory effects alongside reduced systemic oxidative stress and clinical symptoms. CBD (Cannabidiol) was studied sublingually for 8 wk at 20 mg/d and 80 mg/d; neither dose affected the Crohn’s disease activity index or the number of bowel movements per day. Its probability is very low, as is that of Curcumin.

These results apply only to the populations and study conditions examined, which were not consistently specified. Because the evidence is limited and differs substantially in strength, duration, and outcomes, options for Crohn's disease are best interpreted with a clinician.

What to avoid

For Crohn's Disease, concern centers on products that can stimulate or directly irritate the bowel. Aloe Vera may act as a stimulant laxative, which can exacerbate the condition and potentially worsen intestinal symptoms.

Coffee Enema presents a separate but related concern because coffee is introduced directly into the bowel. Its irritant effect, together with the inflammatory nature of Crohn's Disease, can provoke severe colitis and bowel perforation.

Because Crohn's Disease involves an inflamed intestinal tract, products that increase bowel stimulation or expose the bowel directly to irritants warrant particular caution. A clinician can help assess whether a product is appropriate in the context of an individual's condition and treatment.