It is a lifestyle change.  Yes, exactly this. Changing your diet permanently - not going 'on a diet.' Getting to a point where garbage foods are no longer seen as acceptable. Getting to a point where you cook healthy food for yourself, and it actually tastes better than any of the garbage you used to buy when you'd go out. It really is a lifestyle change.  That's what these people don't understand. It doesn't mean ordering fewer tacos at taco bell. It means no longer viewing taco bell as an option. Knowing you could make your own damn tacos and they'd be ten times better, because you know exactly what's in them and you've perfected your recipe.