Nearly all foods are okay in this diet... Just the obviously bad ones. No soda, added sugar, foods with bad chemicals, drugs and alcohol (including caffeine!) no smoking, As for juices get your liquids from actual fruits instead and stick to water. Chocolate has caffeine also and of course no candy at all. All these chemicals deplete your body very quicken of vital nutrients.
If you want something sweet try and find some strawberry preserves sweetened with grape juice I found some at Trader Joes. Also they have a great crunchy peanut butter with no hydrolyzed oils ingredients... ONLY peanuts.
Other than that when you do eat eat good and satisfying stuff. Diet is really not a good word for this because you are only cutting out obviously unhealthy things and cutting out overeating. Diets usually try and restrict basic foods where variety is left completely in tact with this diet.
If anyone wants to list some more of the don't here please contribute.
Just remember one day a week to feast is also permitted on this diet just be sure to get right back into the routine.
And take your vitamins!