Reefer Sanity
Side by side

Cannabis vs. alcohol: it isn't close.

Compare them on toxicity, dependence, organ harm, and deaths, and you'll see why so many people are swapping the bottle for the plant.

The head-to-head

MeasureAlcoholCannabis
Toxicity (margin of exposure)"High risk": at the population level, the only substance in the high-risk band1Population MOE above 10,000, the lowest risk of every drug studied1
Overall harm (expert ranking)Ranked #1 most harmful drug overall (score 72), and the most harmful to other people2Not in the top three. Alcohol (72) scored above heroin (55) and crack cocaine (54)2
Chance of dependence after first use22.7% lifetime88.9% lifetime8
U.S. deathsAbout 178,000 per year, cutting an average of 24 years off each life3 4The National Academies found insufficient evidence of any link between cannabis and overdose death11
CancerA causal link to at least 7 cancers, including breast, colorectal, liver, mouth, and throat, per the U.S. Surgeon General7Moderate evidence of no association between smoking cannabis and lung or head-and-neck cancers11
Global toll2.6 million deaths worldwide in 2019 (4.7% of all deaths)5Lowest toxicological risk of the drugs compared1
Safe amountThe Global Burden of Disease study found the level of drinking that minimizes health loss is zero6Has FDA-approved medicines and a federal finding of accepted medical use21 55

Lifetime chance of becoming dependent after first use

Nicotine
67.5%
Alcohol
22.7%
Cannabis
8.9%
U.S. national survey data (NESARC), Lopez-Quintero et al., 20118.

Toxicity: margin of exposure (higher = safer)

Alcohol
<10*
Tobacco
<100*
Cannabis
>10k
*Population-scale risk bands from Lachenmeier & Rehm, 2015. Alcohol was the only substance in the "high risk" (MOE <10) band and smoking was in the "risk" band, while cannabis had an MOE above 10,000. Bars are illustrative, on a log-like scale1.
Substitution

Swapping the bottle for the plant

Evan's story isn't unique. Researchers have been documenting it for years.

29%

fewer drinks on cannabis days among heavy drinkers in treatment, who were also about half as likely to binge15

44%

of Canadian medical-cannabis patients drank less often after starting cannabis, and 8% quit alcohol entirely14

44.5%

of patients in Canada's federal medical-cannabis program reported substituting cannabis for alcohol52

People who switch give consistent reasons: fewer side effects (65%), better symptom management (57%), and less withdrawal (34%)13. Patients who started cannabis intending to cut down on drinking had significantly greater odds of reducing or quitting alcohol altogether14.

Thinking about switching?Bring a doctor or treatment program into it, like Evan did. Stopping heavy drinking suddenly can cause serious withdrawal, including seizures42. Scientists are still running the long-term trials that will show who benefits most16.