Junk food, which includes highly processed food and fast food (in other words S.A.D.--the Standard American Diet) is a leading contributor to childhood obesity. Obesity, in turn, is a primary cause of the following, among many others:

 

diabetes  ​​ ​​ ​​​​ cancer  ​​ ​​ ​​​​ congestive heart failure

enlarged heart  ​​ ​​ ​​​​ pulmonary embolism  ​​ ​​ ​​​​ hernia

gastro-esophageal reflux disease  ​​ ​​ ​​​​ fatty liver disease

polycystic ovarian syndrome  ​​ ​​ ​​​​ urinary incontinence

chronic renal failure  ​​ ​​ ​​​​ lymph edema  ​​ ​​ ​​​​ cellulitis

stroke  ​​ ​​ ​​​​ Pickwickian syndrome  ​​ ​​​​ depression

arthritis  ​​ ​​ ​​​​ gout  ​​ ​​ ​​​​ gallbladder disease

 

And these diseases, formerly seen almost exclusively in adults, are increasingly striking children, such as juvenile arthritis and juvenile diabetes.