Protein-Sparing Modified Fast
People mainly take Protein-Sparing Modified Fast for weight loss. Based on 3 first-hand reports. Ranked #1415 of 4,171 overall.
Of reports that state an outcome, 67% are positive.
What Protein-Sparing Modified Fast does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“I plateaued, then started to do this, and have dropped around 8 pounds of fat mass while already quite lean in two months.”
“This would be a maximum of 600 calories..not cool... they work, they suck, I'd only say do them short term”
Other options for weight loss
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 3, 2026. How we rate