Smoking
23 SNPs linked to Smoking across 10 genes, 6 with a genotype of magnitude 2 or higher.
- Type
- Condition
- SNPs
- 23
- Notable
- 6Magnitude 2 or higher
- Well documented
- 12
- Genes
- 10
Linked SNPs
Every genotype, as shown in 23andMe and AncestryDNA files.
- A;AAsian Flusher; increased risk of esophageal cancer; East Asian ancestry; Disulfiram not effective for alcoholism.Bad
- A;GAsian Flush; worse hangovers; increased risk of esophageal cancer; East Asian ancestry; Disulfiram probably not effective for alcoholism.Bad
- G;GAlcohol Flush: Normal, doesn't flush. Normal hangovers. Normal risk of Alcoholism. Normal risk of Esophageal Cancer. Disulfiram is effective for alcoholism.Good
- G;GNormal (A2/A2)Good
- A;GA1/A2: Bad at avoidance of errors. 0.5x lower OCD risk, 0.87x lower Tardive Diskinesia risk, higher ADHD risk. More Alcohol Dependence. Lower risk of Postoperative Nausea. Increased obesity. Bupropion is not effective for smoking cessation.Bad
- A;AA1/A1: Bad at avoidance of errors. 0.25x lower OCD; 0.56x lower Tardive Diskinesia; higher ADHD; 1.4x Alcohol Dependence; lower Postoperative Nausea; Increased obesity; less pleasure response; Bupropion ineffective for smoking cessation.; 2.4x risk for adenoma recurrence.Bad
No matches.
Related
Other SNPs
No notable genotype or detailed notes
Source and license
Adapted from Smoking on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.