Junk food is any food with very low nutritional value it is usual food bought from fast food outlets such as "Mac Donlads," "Steers" and "Wimpy." To make this food taste good it could have a lot of sugar added as well as a lot of staurated fat and salt. To much of all of the above are bad for you and are addictive. Saturated fat is not bad for you and is needed in a diet but too much saturated fat is bad for you as it will make you fat and also cause you to gain weight. Too much salt and sugar is also not good for you in your diet it is okay in moderation. But too much salt is unhealthy for the heart and to much sugar is unhealthy and rots teeth, eating refined sugar makes your pancrease secretes more insuline so that your body dosen't have a dangerous spike in blood pressure. The junk food we eat contains carbohydrates and proteins but they are not the ones we need ie the good carbohydrates and proteins so after we eat junk food our blood pressure drops leaving us tired and lathargic. "We think junk food are fatty which they are but junk food is just a named used for foods with low nutritional value that are high in sugar, salt and simple carbohydrates." (Halford, 2000) Child Obesity is also a very big problem as it is becoming an epidemic, more and more toddlers nearly one in five is an obese preschooler.