But many of us do not know what and how they prepare our food.

In Fast Food it is used:

o   Propylene glycol is a substance that absorbs water, and is often used as a commercial lubricant and is used in fast food as food colorings and aromas, such as at breakfast;

o   Sodium nitrite is a preservative that is used as a coloring agent that can make the old meat look red and fresh;

o   Some fast food restaurants use a variety of different synthetic food colorings, and many of them are suspected of risk factors for causing hyperactivity in children;

o   Beetle juice is one of the ingredients found in fast food with the name carmine acid. This used red dye is extracted from the dried and crushed bodies of beetles. This ingredient can be found all natural in a variety of food products, including processed poultry such as some chicken nuggets;

o   Typically used as commercial fertilizer, ammonium sulfate is also found in fast food breads, such as hamburger breads, which makes bread grow and results in more consistent bread;

o   Strokes: Fast food often leads to high blood pressure which, in turn, is one of the major risk factors for strokes. 

o   Obesity: The National Institutes of Health (NIH) also states that consuming fast food can lead to obesity. One study found that a person who eats fast food at least twice a week gains at least ten extra pounds. 

o   Type 2 Diabetes: The National Institutes of Health (NIH) says fast food consumption is strongly associated with insulin resistance, which greatly increases a person's risk of developing type 2 diabetes. 

o   Cardiovascular Disease: Eating fast food is a major contributor to the development of cardiovascular disease. The condition is caused by the buildup of plaques in a person's arteries and can lead to heart failure. 

o   Cancer: According to Corporate Accountability International, one-third of cancer patients are related to fast food consumption. This is often associated with the fact that obesity is closely linked to cancer of the kidney, colon and esophagus.

This gentleman is recognized for turning school lunches into something healthy.

   He improved the quality and nutritional value of school dinners at a typical British school, a goal which ultimately led to a broader campaign (called Feed Me Better) to improve school dinners throughout Britain. He faced some difficulties: firstly, the daily budget for school dinners was a mere 37 pence per child. Secondly, the students at the school were so used to eating processed junk food that Oliver faced a student rebellion when he banned junk food from the school.

   As the campaign gathered momentum, he gained increasing public support,  Oliver approached members of the government, to campaign for increased funding for ingredients and staff wages in school canteens. In 2009, a report was released that after the implementation of Jamie's School Dinners program test scores in English and science improved.

   Oliver challenged everyone with his lunches and managed to open a company called School Food Trust, which after three years exchanged fried dishes for healthy vegetables.

   With this initiative, Jamie is slowly changing the way children eat and also offering training for cooks.
   This company has a motto that no one can forget. "Eat better.Make."

                Stopping the marketing of fast food directed at children with attractive and present characters can be a way to help children make better food choices. 
Another method is to make healthy foods more readily available at affordable prices and in a more attractive format.