Having a meal outside once in a while is fine, but making it a habit can be extremely harmful to ones health. Foods prepared outside are:

1. High in calorific value
2. Poor nutritional value
3. Low in fiber
4. Rich in fats, sugar and salt in excessive quantities

Some of the foods contain a specific amount of MSG as well. Processed foods contain saturated and trans fats. Such foods often have addictive properties.