Newsletter sign up
Sign up to receive our FREE newsletter and emails featuring articles on genetics, exercise, nutrition, customer success stories, new product information and promotional offers.
Genetics is known to influence food cravings, with carriers of a particular version of the FTO gene seemingly biologically wired to eat more and feel hungrier sooner.
Source: 1000 Genome Project. Global averages for both sexes
Among obesity-susceptibility genes recently identified, there is one gene that has a particularly strong association: FTO. If you carry just one copy of the A allele, you are 1.3 times more likely to be obese, and someone carrying two A alleles is over 1.6 times more likely to be obese. In one meta-analysis on over 38,000 people, the 16% of people with the AA genotype weighed 3kg more versus those without the risk allele. The A risk allele has been associated with obesity in multiple different backgrounds, including Caucasian, African American, Mexican, Japanese, Scandinavian, and Han Chinese.