Alcohol (ethanol)
Toxins · Neurotoxic psychoactive
Critical priority
Bottom line
Read Off Label rates Alcohol (ethanol) a CRITICAL avoidance priority (8.5/10) based on very strong evidence of very strong harm magnitude and varies by consumption exposure prevalence.
The J-curve (moderate drinking cardioprotective) has been largely reanalyzed away — recent Mendelian randomization and bias-corrected analyses (Zhao 2023 JAMA Network Open) suggest no benefit at any level.
The intervention here is reducing exposure, not adding a compound.
What this is
The J-curve (moderate drinking cardioprotective) has been largely reanalyzed away — recent Mendelian randomization and bias-corrected analyses (Zhao 2023 JAMA Network Open) suggest no benefit at any level. Canada 2023 became the first major country to dramatically lower guidance. IARC-classified carcinogen at any dose. Biohacker community largely shifting to near-abstinence.
Mechanism
Ethanol → acetaldehyde (IARC Group 1 carcinogen) → acetate; central nervous system depressant via GABA-A, NMDA antagonism; metabolized by ADH → ALDH2 (common E. Asian deficiency polymorphism)
Dose & route
Less is better; 0 is optimal for cancer risk; those who drink: never daily, never more than 1-2 at a sitting
Citations
- https://pubmed.ncbi.nlm.nih.gov/37017972/
- https://pubmed.ncbi.nlm.nih.gov/30146330/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC10091798/
- https://pubmed.ncbi.nlm.nih.gov/41107250/
Links go to the source. If a link is dead or you want something re-checked, let me know.
Common questions
- How harmful is Alcohol (ethanol)?
- Alcohol (ethanol) is rated CRITICAL avoidance priority (8.5/10) on the Read Off Label scale, derived from very strong evidence of very strong harm magnitude and varies by consumption exposure prevalence.
- How does Alcohol (ethanol) cause harm?
- Ethanol → acetaldehyde (IARC Group 1 carcinogen) → acetate; central nervous system depressant via GABA-A, NMDA antagonism; metabolized by ADH → ALDH2 (common E. Asian deficiency polymorphism)
- How do you reduce exposure to Alcohol (ethanol)?
- The J-curve (moderate drinking cardioprotective) has been largely reanalyzed away — recent Mendelian randomization and bias-corrected analyses (Zhao 2023 JAMA Network Open) suggest no benefit at any level.
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.