A fact-checked cannabis encyclopedia

What everyone says about cannabis is mostly wrong.
So we check the claims that matter.

Every article is sourced, evidence-labeled, and reviewed for unsupported claims, weak science, disputed lineage, and cannabis marketing folklore.

Our promise

Every claim is labeled strong evidence, weak evidence, or anecdote — because the difference matters.

If the science is murky, we say so. If a strain's lineage is disputed, we show the dispute. If a "fact" everyone repeats turns out to be marketing, we name it.

Each page goes through a structured fact-check pass and stays open to correction as laws, research, and product claims change. No black boxes.

511
Encyclopedia articles
4,202
Cited sources
518
Fact-check passes
14 hours ago
Last article published

This week on Weedpedia

Recently added

Browse all →
Medical

Cannabis and Athletic Performance

What the evidence actually says about cannabis for recovery, pain, sleep, and performance...

Medical

Sublingual Cannabis Pharmacokinetics

How cannabis taken under the tongue actually gets into your blood, what the evidence shows...

Medical

Cannabis and Sperm Quality

What the evidence actually says about how cannabis use affects sperm count, motility, morp...

Medical

Why Some People Don't Feel Edibles

A look at the metabolism, genetics, dose, and gut-level reasons cannabis edibles fail to l...

Medical

Cannabis and Endometriosis Pain

What the evidence actually says about using cannabis for endometriosis-related pain, fatig...

Medical

Cannabis and Sickle Cell Pain

What the evidence actually says about using cannabis to manage chronic and acute pain from...

Medical

Cannabis and HIV-Associated Neuropathy

Smoked cannabis has some of the strongest clinical trial evidence in all of cannabis medic...

Medical

Cannabis and Diabetic Neuropathy

What the evidence actually says about using cannabis for the nerve pain caused by diabetes...