Home / Gene Variants / CLOCK
CLOCK
Clock Circadian Regulator
Metabolic Health & Glycemia Chr. 4 1 SNP analyzed

About this gene

Master circadian clock gene.

Analyzed variants (SNPs)

rs1801260 CLOCK 3111T/C Population frequency: 30.0%
Genotype Impact What it means
TT (Normal) Normal Standard circadian rhythm - earlier chronotype tendency. Keep consistent sleep/wake times and morning daylight.
TC (Carrier) Low impact Intermediate chronotype. Anchor regular sleep hours, get morning light, and avoid late heavy meals and screens.
CC (Variant) Moderate Evening chronotype tendency - later body clock, higher risk of late eating and short sleep. Favour an earlier eating window, morning light and a consistent schedule.

Discover your CLOCK variant

Upload your 23andMe or AncestryDNA file and get a personalized nutrition plan based on your exact genotype.

Get My DNA Report →