Question: 10 reasons why junk food is bad?
Answer: You'll gain weight. Eating foods that are high in calories, fat, sugar, and sodium feels rewarding in the short-term, but can lead to unwanted weight gain and diabetes down the road. ... 
Fast food is addictive. ... 
You're not getting any nutrition. ... 
Depression and anxiety. ... 
Digestive problems hit hard. ... 
Your heart suffers.