Recently, a US study revealed that the same neurological and behavioural patterns seen in cocaine and heroin addicts are also present in obese rodents that were given extended access to a sweet, fatty buffet. “High-calorie foods trigger the release of dopamine, which results in a feel-good high,” says Dr Louis Aronne from Weill Cornell Medical College in the US. Kick your habit by going cold turkey: Replace chips, ice cream and candy with popcorn, yogurt and fruit. Want a filling snack? Eat crunchy vegetables like carrots, celery and radishes dipped in salsa.