Have you fasted? Do you have advice on how to do it the right way?

I am starting a 3 day fast, and ive never done this before, the longest ive ever done is one day. What did you eat the day before? Did you take vitamins? Is there anything else i should know?Have you fasted? Do you have advice on how to do it the right way?
make sure you eat plenty of foods especially fruits, veggies, and nuts. And make sure weather you eat or not that you drink water when you are fasting.Have you fasted? Do you have advice on how to do it the right way?
Why in heavens name would you fast? Well, stalk up on carbs and sugar, not to mention take things with vitamins. When you're fasting take vitamins so your body doesn't collapse.