The way you talk about food might help you stay away from foods you know you shouldn’t be eating. Are you on a diet so you’re cutting out sugary foods or do you have celiac disease so you can’t eat gluten? Next time someone offers you a treat that you shouldn’t be eating, instead of saying, “I can’t eat that,” tell them “I don’t eat that.”
It just might retrain your brain. It puts the decision not to have the food in your hands. You aren’t missing out on something. It’s not that you can’t have it. You could if you really wanted to. It’s like a vegan. They would say, “I don’t drink milk.” It’s a clear and distinct choice. Say Don’t instead of Can’t and you just might change the way you think about your food choices.