FTO, variants, traits, and what the research shows

FTO - what this gene does

FTO is a gene that influences body weight through its effect on appetite and energy expenditure. The variants listed are population-level statistical signals not deterministic predictors for any individual.

Key takeaways

• FTO variants are linked to higher body weight
• The strongest signal is rs10521304 with an odds ratio of 4.5
• Other variants also show modest associations
• These links do not mean you will gain weight
• Results come from population studies, not individual predictions

Notable variants The highest-magnitude variant rs10521304 (odds ratio 4.5) is linked to obesity rs10521304. Other variants such as rs11075990 and rs117309839 also show moderate signals rs11075990 rs117309839.

Trait associations FTO is associated with obesity and body weight traits. The rs10521304 variant appears in many GWAS linking it to higher BMI rs10521304. Other variants contribute modestly.

Evidence quality The evidence comes from large population GWAS studies with sample sizes exceeding 100,000. The rs10521304 signal is replicated across cohorts but remains a single-locus association. No clinical validation exists for individual risk prediction.

What this is NOT These variants are population-level statistical signals not deterministic predictors for any individual; we don't prescribe diagnose or advise.