There are different kinds of phone apps available these days that can help you compile a shopping list. Or there is the old-fashioned way; scribbling on a shopping list you have hung up in your kitchen. Both ways work and whichever method you use can help you save money and stick to a healthy eating plan.
If you get into the habit of filling in a shopping list as you use up your supplies it will help to prevent compulsive buying when you do the big shop.
There is no better way to shop then knowing what to buy. If you don’t buy healthy food you can’t eat healthy. It all comes down to being organised.
Finally get into the habit of choosing shopping days so you can keep stocked up with fresh foods.