What is a good appetite suppressant? Five set against 5%
What is a good appetite suppressant? Five supplement ingredients, each with its trial's weight figure, set against the 5% prescription average.
What is a good appetite suppressant? By the one benchmark this desk found published, a good one moves body weight by 5% or more: Cleveland Clinic says prescription suppressants average that. None of the five supplement ingredients this desk checked reports a figure at that line; the closest, a bitter hop extract, reported 4.3% in one trial.
This desk read Cleveland Clinic’s appetite suppressants page (last updated 20 November 2023) and five trial abstracts through PubMed on 8 October 2026. This is an evergreen explainer; nothing in it is news.
What is a good appetite suppressant, measured against 5%?
| Option | What was tested | Weight result reported |
|---|---|---|
| Prescription suppressants | Cleveland Clinic’s summary of studies | 5% or more of starting weight, on average |
| Glucomannan | 8 pooled trials, 2014 | -0.22 kg vs placebo, not significant |
| Green tea | Cochrane, 6 trials outside Japan, 532 people, 12-13 weeks | -0.04 kg vs control, P = 0.88 |
| 5-HTP | 900 mg/day, 20 patients, two 6-week periods, 1992 | “Significant weight loss”; no figure in the abstract |
| Caffeine | 13 trials, 606 people, 2019 | Dose-response estimate; no kg or %-of-body-weight figure in the abstract |
| Bitter hop extract (Calocurb) | 500 mg/day, 24 weeks, 128 completers | 4.3% from baseline; 3.8 points more than placebo |
Which supplement comes closest?
The hop extract, on paper. The C4 trial ran alongside monthly lifestyle seminars, so the 4.3% includes diet and exercise advice; the 3.8-point gap over placebo is the extract’s share. It is one trial, and the abstract states that Plant & Food Research licenses the extract to Calocurb Ltd and holds a minor shareholding. Our C4 trial breakdown has the rest, and Calocurb vs Ozempic sets it beside a drug label.
Why are two rows in kilograms?
Because the glucomannan and green tea reviews report differences in kilograms, and this desk did not read the baseline weights needed to turn them into percentages. Neither difference was statistically significant. The glucomannan review covers that ingredient in more depth; the green tea review covers its safety literature.
Is a prescription appetite suppressant the better answer?
For some people, by that benchmark. Cleveland Clinic describes these drugs as weight-loss medication for people with obesity, and lists Wegovy, Qsymia and others as FDA-approved. It also says they work best with a reduced-calorie eating plan and regular activity. The FDA warns that unapproved versions of GLP-1 drugs, including semaglutide, do not undergo its review for safety, effectiveness and quality.
Questions readers ask
Is caffeine an appetite suppressant?
The review read here does not answer that directly. A 2019 meta-analysis of 13 trials with 606 participants measured weight, BMI and fat mass, not appetite, and concluded that caffeine intake ‘might promote’ weight and body fat reduction. Its abstract gives a dose-response estimate, not a kilogram or percentage-of-body-weight figure to set against 5%.
Is coffee an appetite suppressant?
Coffee carries caffeine, but the caffeine abstract read here does not separate coffee from other sources, and it measured weight rather than hunger. This desk did not read a coffee-specific appetite trial for this piece, so it makes no claim beyond that review’s cautious ‘might promote’.
Do natural appetite suppressants work?
On the abstracts read here, the evidence is thin. Glucomannan and green tea differed from placebo by under a quarter of a kilogram, neither significantly; 5-HTP’s 1992 trial of 20 people reported significant loss without a figure; the hop extract’s 4.3% comes from one trial. None reports reaching the 5% average Cleveland Clinic gives for prescription drugs.
The small print, meant
A table is not a prescription, and nothing above promises an outcome. Weight is not a moral matter. These statements have not been evaluated by the Food and Drug Administration, no supplement is a substitute for medical care, and the clinician who would write a prescription is the right person to ask about one.