Fast food costs relatively little and tastes good, but the negative effects on physical health last much longer than these immediate concerns. More fat, cholesterol, salt and sugar with fewer vitamins, minerals and other nutrients comes with high calorie meals than in healthier foods.
Reports say that junk food eating habits create nutritional deficiencies along with weight gain. The health problems that stem from overweight and obesity alone can shorten life spans and severely limit lifestyles.
Obesity means having too much body fat. It is not the same as being overweight, which means weighing too much. Fast food is high in calories and sugar that contribute to increased-weight gain. Even small amount of fast food can increase your calorie intake considerably. Fast foods also replace healthy eating habits, People who consume fast foods are less likely to eat fruits, vegetables, milk etc. This change in eating habits can easily lead to obesity.
Many drive-through foods and drinks have high sugar content, including chocolate shakes, sugar, and colas, as per the USDA. Cheeseburgers contain significant amounts of sugar. Regularly consuming too much sugar can have permanent negative effects on your blood sugar levels.
Diabetes requires daily medication to treat blood sugar imbalances. Serious complications include glaucoma, hearing loss, kidney disease, high blood pressure, nerve damage and stroke. To reduce your risk for diabetes, the American Heart Association (AHA) suggests ordering beverages such as water, reduced-fat milk or diet soft drinks.
A peptic ulcer, also known as PUD, is the most common ulcer of an area of the gastrointestinal tract usually acidic and thus extremely painful. For almost 100 years, doctors believed that stress, spicy foods, and alcohol caused most ulcers. Fast Foods which cause Ulcer are Pizzas, Chips etc.
A study published in the journal Public Health Nutrition showed that eating baked foods (doughnuts, croissants, and, yes, even bran muffins) and fast food (pizza, hamburgers, and hot dogs) may be linked to depression. The study determined that people who eat fast food are 51 percent more likely to develop depression than those who eat little to no fast food.
Rats fed a steady diet with over half the calories from fat (similar to a junk food diet) for just a few days had trouble completing a maze they had previously mastered in a 2009 study.
Obesity is associated with an increase in respiratory problems. Obesity may cause episodes of shortness of breath or wheezing with little exertion. Obesity also can play a role in the development of sleep apnea, a condition in which sleep is continually disrupted by shallow breathing and asthma.
A recent study published in the journal Thorax suggests that children who eat fast food at least three times a week are at increased risk of asthma and rhinitis, which involves having a congested, drippy nose.
Memory and learning problems
American Journal of Clinical Nutrition in 2011 says that healthy people who ate junk food for only 5 days performed poorly on cognitive tests that measured attention, speed, and mood. It concluded that eating junk food for just five days regularly can deteriorate your memory.
As per a study published in the journal Nature, A junk food diet could also affect your brain’s synapses and the molecules causing memory and learning problems. This probably stems from the fact that a poor or toxic diet can cause certain chemical reactions that lead to inflammation in the hippocampus area of the brain which is associated with memory and special recognition finally leading to the mal-function of the brain.