PlainPill
SupplementDigestion

Metamucil

People mainly take Metamucil for digestion. Based on 6 first-hand reports and 1 meta-analyses & systematic reviews in the medical literature. Ranked #890 of 1,974 overall.

Compare with…Alternatives for digestion
19
User score
Mixed
33% positive17% mixed17% negative33% unclear

Of reports that state an outcome, 49% are positive.

Clinical research
BModerate research base
1
meta-analyses
5
RCTs
62
papers

What Metamucil does, according to users

Of the people who reported each effect, the share who said it got better.

Digestion75% of 4
betterno changeworse

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

BModerate research base

At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.

J Am Assoc Nurse Pract · 2023 · Meta-analysis / systematic review
Psyllium is a natural nonfermented gel-forming fiber that is effective for weight loss: A comprehensive review and meta-analysis

Conclusion: Six studies meeting inclusion criteria were identified (total n = 354). The meta-analysis showed that psyllium, dosed just before meals (mean dose 10.8 g/day, mean duration 4.8 months), was effective for decreasing body weight (MD = -2.1 kg [95% confidence interval [CI]: -2.6 to -1.6]; p < .001), BMI (MD = -0.8 kg/m 2 [95% CI: -1.0 to -0.6]; p < .001) and waist circumference (MD = -2.2 cm [95% CI: -2.9 to -1.4]; p < .001) in overweight and obese populations.

PubMed 37163454 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

dailyas reported
4 teaspoonsas reported

Reported side effects

How often each side effect came up across all reports.

stomach issues ×1

What users say

Verbatim quotes, shortened only — each links to the original discussion.

“Starting the day with Metamucil is good for the biome”
Source discussion ↗
“Metamucil! It makes my period way easier to have luxury uhm … digestion”
Source discussion ↗
“I've tried metamucil (worked amazing for the first week... until it kinda stopped working).”
Source discussion ↗
“Unflavoured psyllium husk powder is typically much cheaper per dose than Metamucil”
Source discussion ↗
“metamucil gave me that gritty orange sludge and enough gas to clear a room”
Source discussion ↗
Top discussions (5)

Other options for digestion

Psyllium Husk
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77
89% report better digestion
Mostly positiveAResearch: Strong
Retatrutide
Peptide · 298 reports
73
43% report better digestion
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Tirzepatide
Medication · 219 reports
70
33% report better digestion
Mostly positiveAResearch: Strong
Magnesium Glycinate
Supplement · 910 reports
63
57% report better digestion
Mostly positiveCResearch: Limited
Magnesium Citrate
Supplement · 223 reports
62
70% report better digestion
Mostly positiveAResearch: Strong
Black Seed Oil
Supplement · 111 reports
56
80% report better digestion
Mostly positiveBResearch: Moderate

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate