It was designed to preserve health standards.
Keeping kosher.
The Jewish people are required to fast on yom kippur
I found an interesting website in regards to this diet. http://www.everydiet.org/diet/macrobiotic-diet gives you a an overview of what exactly this diet will pertain, including the foods that are allowed.
The diet of religiously observant Jews is made up of Kosher food. However, kosher food is not a style of cooking, it simply refers to food that is prepared and consumed according to 'kashrut'. "Kashrut", which is what Jewish dietary law is called, comes from the Hebrew root Kaf-Shin-Reish, meaning fit, proper or correct. It is possible to list quotes about food preparation and consumption from the Torah, however, that wouldn't actually answer the question as to what the Jewish diet is. In truth, the diet of Jews is largely influenced by the country they are from. For example, the diet of Polish Jews was traditionally hugely different from the diet of Jews from countries such as Morocco, Italy, Yemen, India, etc. As such, it would be impossible to outline the diet of different Jewish communities in this forum. A quick comparison would be that Eastern European Jewish diets would favour beef, chicken, and various types of dumplings while a Moroccan Jewish diet would favour lamb, chicken, fish, and a more complex use of spices, fruits, and vegetables.
There are many interesting diets that are geared towards losing weight. One interesting diet is the soup diet. The soup diet is a diet that is geared towards selecting soups that are aimed at burning fat, and eating only these soups for seven days. The trick to making the soup diet work is picking the right type of soup. Focus on soups that are filling, but aren't high in calories and don't have a lot of fat. This will ensure that you are able to get the best soup possible for your diet, and will let you still eat what soups you like while you diet.
The Omega Diet is a "Mediterranean" diet, meaning that healthy fats are emphasized along with fresh vegetables. If this sounds interesting to you, you can find this book at a local bookstore or on Amazon.com.
The three day diet is kind of iffy, WebMD has an interesting article that discusses this diet plan. What you need to realize is that the best way to lose weight is to cut out fats, sugars, soda and other things and then eat a balanced diet.
Yes, but it's easier to do in a Jewish establishment.
Liquid Diet Recipes Keep Things Interesting
Yes, but the interesting question is, was it under the Holy of Holies? Possibly, but there is no consensus about this.
Roberta Leviton has written: 'The Jewish Low-Cholesterol Cookbook' -- subject(s): Jewish Cookery, Low-cholesterol diet, Recipes
A Jewish person can be a vegetarian, but most are not; nor is it a requirement of Judaism.