re buying the pre-prepared ones. If you have a
juicer you can juice anything, so you can have a
very nutritious liquid diet
that way. However, since you won't be staying on a liquid diet, when you go back to a solid one, you'll probably gain the weight back. What you need is a permanent change in your diet, cutting back on the simple sugars such as white flour and sweets and such and the bad fats such as fatty cuts of beef, and increasing calorie burning.