The Big Picture: Alcohol Harms Outweigh Any Benefits, New Review Confirms
A comprehensive review published in the journal Addiction delivers a stark warning about the global impact of alcohol, linking it to a vast array of diseases and injuries.
More than 60 health conditions are now considered fully attributable to alcohol, including severe outcomes like alcoholic cardiomyopathy, cirrhosis of the liver, and fetal alcohol syndrome. The review expands the scope of harm, showing that alcohol is a significant contributor to both infectious diseases (such as tuberculosis, pneumonia, and HIV/AIDS) and non-communicable diseases (including several cancers, cardiovascular disease, type 2 diabetes, neuropsychiatric disorders, and gastrointestinal issues). Injuries, from falls to traffic accidents, are also directly linked to alcohol consumption, with the level of risk varying based on how much and how often a person drinks.
Can the Damage Be Reversed?
A key finding of the review is that some harms are reversible with reduction or cessation of drinking. However, the timeline and extent of recovery depend heavily on the condition:
- Short-term risks like injuries and acute infections decrease rapidly when drinking stops.
- Chronic conditions such as cirrhosis and advanced heart disease may not fully reverse, even with long-term abstinence.
- Positive changes are possible: cardiovascular improvements can be seen within days to weeks of quitting, and brain damage may show partial recovery over a longer period of abstinence.
The Bottom Line on "Moderate" Drinking
The authors conclude that current evidence does not rule out a potential beneficial effect of low-level drinking on ischaemic heart disease and ischaemic stroke, but overall harms outweigh benefits.
Led by Dr. Jürgen Rehm (Centre for Addiction and Mental Health, CAMH) and Sinclair Carr (Harvard T.H. Chan School of Public Health), the review underscores that while a protective effect for certain heart conditions cannot be entirely dismissed, it is far outweighed by the widespread and severe harm alcohol causes to the rest of the body.