There is an increasingly concerning rate at which people consume junk foods which appears to be increasing daily. And concerns about the negative health effects resulting from junk food, especially obesity have resulted in public health awareness campaigns and restrictions on advertising and sale in several countries.
Junk food is a term used to describe foods with little nutritional value. .
When junk food is consumed very often, the excess fat, simple carbohydrates, and processed sugar found in junk food contributes to an increased risk of obesity, cardiovascular disease, and many other chronic health conditions.
Children who eat fast food as a regular part of their diets consume more fat, carbohydrates and processed sugar and less fiber than those who do not eat fast food regularly. Junk food in these children accounts for 187 extra calories per day, leading to 6 additional pounds of weight gain per year. Also the insulin levels became elevated when processed sugars such as soft drinks and other food devoid of fiber and nutrients necessary to properly metabolize carbohydrate are taken regularly.
Excess consumption of trans fats found in fried and processed foods can send mixed signals to the brain which makes it difficult to process what you have eaten and how hungry you are. This is probably why you end up overeating. Healthy brain functions require a daily dose of essential fatty acids like omega-6 and omega-3. Deficiency of these two elements increases the risk of attention deficit disorder, dementia and bipolar disorder and other brain-related problems.
Fast foods are specially designed to be additive in nature with high levels of salts, sugar and fats that make you crave for them. The additive nature of fast food can make the brain to crave them even when an individual not hungry.