Introduction: " ;junk food " ;a word has frequently appeared in people .Everyone on the " ;junk food " ;understanding of basically the same ,that mainly refers to the McDonald ,KFC and the like foreign fast food .
Someone also think " ;junk food " ;in addition to foreign fast food but also including those fried, puffed food ,such as supermarket sell chips ,crackers and so on junk food .You know ?You know every day to eat food in the number of " ;" ;?Please see " health topics ;junk food " ;what harm ?" ;junk food " ;" ;" characteristics of three ;junk food " ;" ;the term refers to the original burger ,French fries ,coke and other fast food ,now in the majority of your eyes ,this term has not simply refer to foreign fast food .
Some students think, " ;junk food " ;refers only to provide heat ,no other nutrients from food ,that is usually the high-calorie ,high-fat ,high-sugar high " ;" ;food .
There are some nutrition experts say ," " ;three ;the food itself not guilty ,not simply referred to some food for the " ;" ;.Although public opinions are divergent. ,but having a bit is Ken Set, one day boold excess fats and sugar on the great bodily harm ,these provide excess calories foods on the human body is " ;" ;" .
How to explain ;junk food " ;?All l III r food and junk food category for L R is not science ,because the fat, sugar and calories is an essential source of energy. The fried ,grilled foods contain a lot of carcinogens ,some pickled ,puffed food and processed meat foods contain a lot of nitrite and other harmful chemical ingredients ,and food were joined in the excess of artificial these food additives ,to the human body caused huge potential harm ,can be hundred-percent to call it " ;junk food " ;.
And part of a high fat ,high calorie foods ,such as cake and some fresh dessert ,although belong to high " ;" ;food ,but do not contain harmful to human body chemical composition ,only when people ,the partial eclipse these high fat ,high sugar foods ,causing heat boold too much and other nutrient deficiency ,these foods will become " " ;junk food ;.
If a balanced diet ,moderate consumption of these foods at the same time ,are in adequate amounts of protein ,vitamins ,minerals and other nutrients ,so that fat in the diet structure occupies a science ,the appropriate share ,this time is not to say that all high-calorie ,high fat ,high sugar foods are junk food " " ;;" .
" ;junk food ;why addictive in our daily exposure to food ,no one can be called a protein ,fat ,carbohydrate ,vitamins ,minerals and dietary fiber content is complete ,reasonable collocation ,thus either high heat or low calorie foods ,a single ,large consumption of all harmful to human body .
But most of people prefer those high-calorie ,high fat ,high sugar foods such as hamburgers ,French fries ,fried chicken ,sausage ,etc. ,very few people eat low-fat food tasteless and insipid .
In this regard, China CDC Institute of nutrition and food safety, food and nutrition evaluation of director Professor Yang Yuexin said ," high " ;food ;usually heavier taste ,the taste stimulus, and the taste once accepted this delicious after stimulation will be addicted to ,it is very difficult to refuse to eat To temptation.
In addition ,according to Yang Zhao Professor Xu said ," ;junk food " ;addictive because some fried or processed foods contain a lot of spice ,pigment ,flavoring agent ,swelling agent and other artificial additives ,these chemical agents to make food in color ,taste ,appearance of people have great temptation ,an irresistible .
Also some unscrupulous traders in food with addictive drugs ,these drugs can affect the body nervous system ,make the person produces dependence ,allowing consumers to food that is difficult to give up junk food .
" ;" ;great influence on children food experts advise all cherish health ,people should stay away from " junk food ;" ;,especially those experts were called hundred-percent " ;junk food ,such as " ;fried ,puffed food ,preserved food ,can be long-term preservation of meat food.
This kind of grease food adds a non-digestible factors ,often in the gastrointestinal tract .For a long time the main factors ,is the cause of constipation ,and promote blood flow and retention of excess gastrointestinal ,prompting the acidic fluid, severe destruction of life health of resource configuration principle ,obesity ,diabetes ,hypertension ,bringing high blood Fat ,heart disease and other diseases of the wealthy.
" ;junk food " ;buried under disease risks to especially, " ;junk food " ;hazards to children has begun to attract the attention of the whole world .The Second Military Medical University University Changhai Hospital Nutrition Department Professor Cai Donggeng said ,eat a lot of junk food " ;" ;for children intelligence ,height growth will have a great impact.
Induced by high fat diet in children with obesity, obesity effects of hormone metabolism ,particularly for the metabolism of blood glucose insulin insulin secretion ,if too little will inhibit protein synthesis ,the children unfavorable .
A report by the Shanghai Research Institute of physical education and health in adolescents in Shanghai City constitution and evaluation center sampling investigation shows ,Shanghai city 66% children is not ideal .
British experts recommend " ;unhealthy food " ;must be in the packaging on the eye-catching signs ,to prevent the British obesity trend. In China ,obesity ,diabetes ,high blood lipids and other by bad diet habits that lead to the disease is spreading quickly away from junk food .
" ;" ;,maintain science ,balanced diet ,is reduced in these diseases the basic method of uncontrolled .Eating a hamburger ,fried chicken ,French fries and other fast food as well as flakes and other children favorite small expanded food ,are important factors affecting the child ,can lead to children sexual precocity .
In addition ,excessive consumption of these foods will affect children .Professor Cai Donggeng says ,too much body fat in obese children ,the nerve cells to produce effect damage to the child ,the developing neural channel ,on the development of children to cause harm.
Small expanded food is a child killer according to Xinhua news agency ,the UK will pass laws ,banning television broadcast on " in children ;junk food " ;ad .At the same time ,the " ;junk food can cause obesity ," ;the culprit or purpura .
According to ha I foreshore City reports, ha I bin at a hospital in the city of nearly 2000 children withpurpura disease investigation and epidemic University found ,these children have a small expanded food .
According to ha I foreshore City food experts, hamburgers ,French fries ,cheese ,small expanded food children like to eat greasy junk food ," ;" ;high fat content ,high sodium content ,eating more will gain weight ,can lead to hypertension ,diabetes and other chronic diseases in recent years .
To the children ,brightly coloured small expanded food ,French fries ,hamburger ,shrimp crackers ,beloved by children ,and sold well. According to the nutrition experts, these incense ,crisp ,crisp food ,added pigment ,flavoring agent ,swelling agent ,stabilizer ,preservatives and so on .
These food protein ,cellulose ,mineral content very low ,children eat no nutrition ,regular consumption can also cause obesity and high blood pressure disease .In recent few years ,children outpatient reception throughout adolescence ,with sexual precocity obesity children increased.
Many children because of excessive consumption of small expanded food ,French fries ,hamburgers and other junk food ," ;" ;lead to sexual precocity ,obesity. According to doctors, this kind of food is " ;five a " ;food ,high carbohydrate ,high fat ,high calorie ,high salt ,sugar ,monosodium glutamate, and raw materials of vitamin ,mineral ,cellulose and other nutrients in the process was mostly destroyed.
Food processing of don look at these children learn toxins in food packaging have brightly coloured ,the pigment is mostly artificial synthetic pigments .Synthetic pigment in the chemical method to extract and In the process ,some also may be mixed with impurities such as arsenic ,mercury ,aniline and other substances, these substances have different degrees of toxicity.
As children especially the infant immune system development is not mature ,liver detoxification capacity is weak ,very easy to small food additives to produce allergic reactions. Parents should properly control the pocket money ,do not let the child be outside colourful snacks attract, develop their care for their own health ,far away from the junk food habits .
Popcorn ,canned food or drinks containing high amounts of lead ,blood lead concentration reached 5-15mg / 100ml,can cause children growth retardation and mental deterioration .Because lead will direct damage to nerve cells within the genetic material DNA function ,so that the brain norepinephrine ,dopamine and serotonin 5 HT content was significantly reduced ,resulting in neurotransmitter conduction block ,cause memory loss ,dementia ,mental retardation.
According to other researchers on 22 kinds of beveragepop-top beverage survey found ,aluminum content ratio bottled beverages high 3m6 times,if the child to drink too much, it will increase the amount of aluminum boold ,make the child mental retardation ,learning difficulties ,behavioral abnormalities.
Many foreign fast food Salt ,saccharin ,MSG is more, not only make people susceptible to hypertension ,arteriosclerosis and other diseases ,effects on the brain blood supply ,brain cells from long-term hypoxia ischemia ,resulting in slow reaction ,memory decline .
Pregnant women eat MSG may cause fetal zinc deficiency ,affect the child born after the body and nervous system development .Who recommended adult ,per person per day boold MSG should not be more than 4 grams ,pregnant women and infants under the age of 1 fastingglucose oxidation .
The body needs vitamin B 1 enzymecatalysis, and fast food sugar too much ,the body due to accelerated the oxidation of sugars and consume large amounts of vitamin B1 ,vitamin cause B1 deficiency ,so that glucose oxidation is not whole, produce lactic acid and other metabolic intermediate ,in children with brain tissue accumulation ,affect children central nervous activity, emotional instability ,tired of Zao irritability ,distraction and other symptoms ,affect their mental development ,serious will develop beriberi .