Start slowly, introduce one new food and take one out each week, it makes it much easier to make changes slowly instead of all at once.

I was feeling horrible and very tired/sluggish and have felt much better by dropping sugar and refined foods. We now have brown rice, limited potatoes and lots of water. I snack in berries and nuts instead of lollies. I have more salads than what I used to and I am trying new foods each week. I find I am not so tired anymore and my energy levels are much better.