No, Scientologists do not have to follow any diet and are not required to avoid any food.
Scientologists are however encouraged to eat and get all the nutriments they need.
In the book "Clear Body Clear Mind", L. Ron Hubbard states as follows:
" Locating and remedying deficiencies and excesses in vitamins, minerals, enzymes, sugar, protein, oil and fats, carbohydrates and bulk fiber as well as other dietary supplements is the keynote of dieting. No special substance or food or abstinence from it is a whole answer.
Diets should be considered a subject where one seeks a balance of body support elements and determines quantity. Fasting, magic foods eaten to the exclusion of others and dozens of dietary fads alike tend to be more harmful than beneficial. "
A side note:
in your question you asked "Scientology have any foods they are allowed and not allowed to eat". Scientology is the name of the religion. If you want to refer to people who practice the religion, the correct term to use it "Scientologist" (Singular) "Scientologists" (Plural).
yes,there are,like fish and meat is allowed to eat.
There are no major foods of Scientology, but no taking any form of psychiatric medicine at all whatsoever. Actually, that is not true. While in the Sea Org, the paramilitary wing of $cientology, you can be put into the Rehabilitation Project Force (against your will and indefinitely) and made to subsist on a diet consisting entirely of beans and rice. Yummy!
Orthodox Jews are only allowed to eat kosher foods.
Meat and dairy.
Muslims aren't allowed to eat pork.
Short answer, No. Scientology is a belief system unlike any other belief system practiced today. It is not 'evil' in nature nor does it desire the destruction of all life on earth.
They can eat all foods. They don't have any religious reason not to eat a certain food.
In the Langar, you eat only plant foods, such as fruits, berries and vegetables. Everybody is allowed to eat with them. They only eat after they pray in the Gurdwara.
You can eat any foods. Excessive eating makes you fat
yes, it is customary to eat dairy foods. Although it is allowed to eat meat on the holiday as well. (But of course, not dairy and meat together!--that would not be kosher)
Astronauts eat mostly dehydrated foods. The foods are dehydrated in order to keep them from spoiling. The foods they eat include meats, tuna salad, soups and vegetables. They also are allowed to take along snacks such as potato chips and candy.
Like any other human food but subject to some Islamic rules as for what allowed to eat and what is not. Refer to question below.NOT it is so gross.