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rs762551(C;C)

From SNPedia

CYP1A2 slow caffeine metabolizer.
Is agenotype
ofrs762551
GeneCYP1A2
Chromosome15
Position74,749,576
mentionedby
Magnitude2.5
Geno Mag Summary
(A;A) 2 Fast Caffeine Metabolizer.
(A;C) 2.1 Carrier of one CYP1A2*1F allele; Slow Caffeine Metabolizer.
(C;C) 2.5 CYP1A2 slow caffeine metabolizer.

More strongly affected by drinking coffee, because caffeine is broken down slower in your liver. Supposedly this increases risk of heart attacks, although other studies show caffeine is generally good for your heart. This also makes caffeine more effective at preventing Breast Cancer, Alzheimer's Disease, and Parkinson's disease. But too much caffeine will shrink your breasts.