Junk food is aptly named for its lack of nutrients and high fat, sodium and sugar content, according to FitDay. Eating junk food on a regular basis contributes to an array of health maladies, including obesity, diabetes, heart disease and even arthritis. Therefore, this type of food is not a healthy option for any diet and should be eaten sparingly.
The human body craves food, particularly the nutrient-dense fruits, grains, vegetables and protein it needs to survive. When the body does not receive the proper fuel, it shuts down. Not only does junk food have adverse effects on the digestive and cardiovascular system, it also influences the brain. Junk food addicts frequently report fatigue, bad moods and poor cognitive performance after consuming the food.
Additionally, WebMD notes that junk food eaters tend to overeat since their potato chips, donuts and fast food meals do not have enough fiber and protein to keep them full for very long.
Nutritionists also warn against the genetically modified ingredients in today's junk food as well as the MSGs (monosodium glutamates) in fast food, particularly Asian cuisine. The Mayo Clinic notes that these additives and unnatural variations of food lead to problems of their own, including digestive problems, headaches, chest pain, numbness and other short term symptoms.