Supplement
CBD
The cannabis compound without the high.
CBD (cannabidiol) is a non-intoxicating cannabis compound sold for sleep, anxiety, and pain. We grade CBD C- on evidence and D+ for worth-it at about $20-50 per month.
Evidence
Worth it
Typical cost: $20-50/month
What it does
CBD (cannabidiol) is a non-intoxicating cannabis compound sold for sleep, anxiety, and pain. Human trials exist but are small, and product quality in the unregulated market varies wildly.
What the research says
May ease anxiety and support sleep
Evidence: emerging. Small RCTs show signals; effect sizes vary and dosing is unsettled.
DRAFT: real pharmacology, but small trials and a chaotic product market.
Is it worth it?
DRAFT: expensive per month with thin evidence; product quality is a lottery.
Typical cost
$20-50/month
Common form, not a brand recommendation
Dosage contextemerging
25-50 mg is the commonly studied range; no consensus dose.
Safety notes
Interacts with many drugs via CYP450 liver enzymes. Buy only third-party tested products. Talk to your doctor. This page is information, not medical advice.
Longevity Lab Report
CBD news, graded when it happens.
New studies, dose debates, and expert shifts on cbd, in one email a week. Free.
Changelog
Last updated 2026-10-15
- 2026-10-15|Batch 3 entry, DRAFT. Grades provisional; expert positions unsourced unless noted.