Nutrition

nutrition


Nutrition is the science that studies the process by which living organisms acquire all the things that are necessary for them to live and grow. Nutrition focuses on the role of nutrients, which are defined as substances that the body cannot make on its own and include things like vitamins, minerals, and certain macromolecules. Basically, nutrition consists of diet (what you takein) and metabolism (what happens to it after it enters your body).
Good nutrition can help prevent disease and promote health. There are six categories of nutrients that the body needs to acquire from food: protein, carbohydrates, fat, fibers, vitamins and minerals, and water.
There are many kinds of food one is the processed food which produces many diseases in our body.




What is aProcessed Food?
You Might Be Surprised!

What comes to mind when you think of a processed food? You’re right if you think of items such as cookies, snack chips and carbonated drinks. But you might be surprised to learn that most foods we eat are processed. Read on to get the facts about processed foods – and answers to some common questions about them. Processed Foods Defined Food processing is anydeliberate change in a food that occurs before it’s available for us to eat. It can be as simple as freezing or drying food to preserve nutrients and freshness, or as complex as formulating a frozen meal with the right balance of nutrients and ingredients.

A few examples of processed foods include:


 Canned and frozen fruits and vegetables
 Packaged foods labeled “natural” or“organic,” such as cereals, fresh meat and poultry, and jarred baby foods
 Foods with health and nutrition claims on the label, such as “may reduce risk of heart disease,” “low in fat” or “high in calcium”
 Foods fortified with nutrients such as fiber, vitamin D and omega-3 fatty acids
 Foods prepared in quick-service and fine-dining restaurants, cafeterias and food courts, sports arenas, coffee shopsand other locations.
A chemical which causes cancer has been found in a huge range of foods including bread, crisps and baby food.
Scientists have identified high levels in thousands of cooked and processed products.
The substance, acrylamide, has been linked to several types of cancer including bowel, bladder and kidney, and is known to cause infertility and loss of muscle control
Scientistshave known since 2002 that the chemical exists in certain products and have urged the food industry to reduce levels.
But a major study by the European Union has confirmed that there are still large amounts in a range of items including chips, instant coffee, bread, biscuits, crisps, breakfast cereals and baby food.
Experts are now urging food producers to take stronger action, and are advisingthe public to cut down on processed food and eat as much fresh produce as possible.
Scientists do not know exactly what causes acrylamide to form but they believe it occurs as a result of a chemical process during baking, frying, grilling or toasting.
It appears to form when food is heated to above 120c. It is not found in uncooked or boiled food.
It is also manufactured for industry and used tomake asphalt, glue, dye, paper, fabric and cosmetics as well as to remove impurities in drinking water.


The EU’s European Food Safety Authority examined 22 different food groups known to contain high levels of acrylamide in 23 countries, including Britain, and compared levels recorded in 2007 and 2009.
It found despite the warnings, levels had increased in instant coffee and crisp bread andremained the same in almost all the other products.
Levels had gone down only in crackers, baby biscuits and gingerbread. The report warns that voluntary measures by the food industry have had ‘limited success’ and concludes that further action is needed.
It concludes: ‘It would be desirable to reduce acrylamide levels further in food groups contributing the most to exposure, such as fried...