Junk Food is the food that is prepared in time less than normal meals prepared at home, and is easy to prepare and tasty, such as burgers, pizzas and sandwiches of all kinds. The foods we mentioned and others prepared by famous international restaurants rich in fat, preservatives, sugars, and calories.
It was the first appearance of fast food in the Roman era in Britain, since in 1762 "John Montagu" had wrapped pieces of dried meat in bread so as not to delay or interrupt his work. This was the first form of sandwiches, and the United Kingdom took some Recipes from the cultures of other countries, such as Italian pizza, which was initially a fast meal prepared by Italian mothers for their children.
One of the Italian men opened a small pizza restaurant, so Italy became known for pizza, and the Chinese were famous for their well-known noodles.

Junk food components
1- Meat fried in oil: as a piece of chicken and fish covered with a layer of flour, eggs and bread cracker, as the problem lies in the oil used, which contains different types of hydrogenated oils, where the proportion of fat and calories are high.
2- Fried potatoes: They are usually chopped and frozen, but they are also often half-fried, as they are cooked again until it reaches full maturity. This potato has high levels of sodium, fat and calories.
3- Sugar: Soft drinks, industrial juices, and some dishes of sweets, contain high proportions of sugar, preservatives, and chemicals.
4- Grilled meat, such as grilled burgers and shawarma, are among the most high-fat foods, compared with other varieties. Some of the mixtures used in these foods contain chemicals and artificial flavors.
5- Sauces, Mayonnaise, and everything that is put inside the sandwiches, all contain high sodium oils.

There have been many studies and research on all types of fast food, which are sold in famous restaurants and others, where it was found to many researchers that they have serious damage to human health.
They also found the negative effects on many people who used to eat these meals frequently, such damage leads to serious and fatal diseases:
- Cardiovascular disease
The high fats content of these meals help to raise the level of cholesterol in the blood, which in turn is one of the main causes of high blood pressure, atherosclerosis, strokes, and high blood sugar.
- Liver diseases
Some studies were conducted on several people who ate fast food on a daily basis and found that they had hepatitis.
- cancer
Researchers confirmed the link between gastrointestinal and colorectal cancer patients. They noted the high rate of this type of cancer in people who eat these foods regularly, particularly smoked foods that contain a high percentage of carbon dioxide may lead to cancer.

- Osteoporosis
Since these foods lack the necessary vitamins and minerals, it is normal to find bone fragility, and the soft drinks offered with these meals prevent absorption of the essential calcium component of the bones.
- Obesity
Various studies indicate that fast food has doubled its calorie to four or five times since the 1970s, and this naturally will lead to a rise in the levels of obesity in people who eat it. Obesity is one of the most leading causes of many different diseases, Such as cardiovascular disease, mental illness, bone and many more.