When you go to the grocery store when you are still new to a healthy eating lifestyle you need to be together in everyway way possible.  Make sure your list is very specific and total.  Another important thing you will need to keep in mind is that you can not stray from this list if you expect to succeed.  Exercises is a big part of the plan of course but you will need good nutrition plan to carry forward with your progress.  The grocery store can be your best friend or worst enemy.  Its the best way to eat healthy if you put together a good plan.