Liking high-fat foods can now be linked to your genes. The scientists who made this discovery hope to use it for personalized dietary advice to help obese patients. This linkage occurs in the receptor gene or oxytocin; a preference for chocolate and a larger waist is linked to this hormone. Salt intake shows to be linked to CREB1 and GABRA2 loci. The study was done using a questionnaire which could cause some false results based on lying.