This page contains affiliate links. We may earn a commission if you purchase through them, at no extra cost to you. As an affiliate we earn from qualifying purchases via AWIN and CJ.
Is Substance Use Disorder Genetic?
Is Substance Use Disorder hereditary? Here's what the research says about inherited risk.
- Heritability
- ~50%
- Inheritance
- multifactorial
- Key genes
- ADH1B,ALDH2,DRD2,GABRA2
CircleDNA's Premium Test includes personalised reports on Substance Use Disorder risk. See your genetic risk →
Substance use disorders including alcohol dependence have heritability of 50–60%. Genes influencing reward pathways and substance metabolism play key roles.
How Genetic Is Substance Use Disorder?
Genetics plays a meaningful role in Substance Use Disorder, with heritability estimated at around 50%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Substance Use Disorder: ADH1B,ALDH2,DRD2,GABRA2. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: CDC Genomics
Does Family History Matter for Substance Use Disorder?
Family history does matter. Having close relatives with Substance Use Disorder can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
Frequently Asked Questions
Is Substance Use Disorder genetic?
Genetics plays a role, but environment and lifestyle also contribute. Studies suggest heritability of approximately 50%. Key genes involved include ADH1B,ALDH2,DRD2,GABRA2.
Can a DNA test reveal my risk of Substance Use Disorder?
Yes — DNA tests such as CircleDNA's Premium Test include reports on Substance Use Disorder risk based on your genetic variants.
Does family history matter for Substance Use Disorder?
Family history does matter for Substance Use Disorder, though it is not deterministic — lifestyle and screening remain important regardless of family background.
Is Substance Use Disorder hereditary, meaning it's passed directly from parent to child?
Substance Use Disorder follows a multifactorial inheritance pattern in cases with a clear genetic cause, though not every case is inherited directly from a parent — some arise from new (de novo) mutations or a combination of genetic and environmental factors.
The world's most comprehensive at-home DNA test. 500+ personalised reports across cancer risk, heart health, diet, fitness, medication response, and family planning — trusted by 500,000+ people worldwide.
- Results delivered in 18 days
- Includes genetic counsellor access
- Covers 500+ health & wellness reports
US readers: Already know your genetic risk? HealthLabs lets you order blood biomarker tests without a doctor's referral — 4,000+ tests, no insurance needed, results in 1–3 business days.
Related Genetic Conditions
Know for Certain — Certified DNA Results in 3–5 Days
Understanding whether a condition runs in your family sometimes means confirming biological relationships. Paternity Lab provides court-admissible and personal-use DNA tests — AABB-accredited, with 99.99% accuracy.
- Results in 3–5 business days
- Court-admissible legal testing available
- Discreet home collection kit included
Your genetic data is the most sensitive personal information you'll ever share online. In 2023 alone, millions of DNA test users had their data exposed in breaches. SmartCredit monitors for data breaches and removes your personal information from the web — try it for $1 for 7 days.
If a genetic condition means watching your nutrient intake, Herbspro stocks 70,000+ vitamins, supplements, and health products to help fill the gaps your doctor or genetic counsellor recommends.
Browse supplements at Herbspro →Sources
Last updated: · Reviewed by the 247GeneticCheck editorial team
Content compiled with reference to peer-reviewed genetics literature and testing-provider documentation. This site does not provide medical or genetic counselling advice — always consult a healthcare professional or genetic counsellor before acting on DNA test results.