PlainPill

Caloric Restriction

People mainly take Caloric Restriction for longevity, sleep, energy. Based on 6 first-hand reports. Ranked #1043 of 1,974 overall.

14
User score
Mostly negative
17% positive0% mixed17% negative67% unclear

Of reports that state an outcome, 50% are positive.

Clinical research
Research pending

What Caloric Restriction 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.

Research data for Caloric Restriction is being compiled.

Dosage people report

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

500-1000 calorie deficitdaily

Reported side effects

How often each side effect came up across all reports.

No side effects reported so far.

What users say

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

“metformin, rapamycin, caloric restriction, etc.”
Source discussion ↗
“There is no one-size-fits-all approach to caloric restriction. While Ferriss recommends aiming for a calorie deficit of 500-1000 calories per day.”
Source discussion ↗
“When body fat drops below your individual threshold, leptin tanks, and the entire downstream cascade follows”
Source discussion ↗
“Caloric restriction, fasting and the like have resulted in increased lifespan according to all the research.”
Source discussion ↗
“caloric restriction optimal nutrition, and at least intermittent fasting for better anti aging potential”
Source discussion ↗
Top discussions (5)

Other options for longevity

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