Hasan knows he eats too much junk food. He wants to be healthier. Which would be the most balanced way for Hasan to make the change he desires?

A.
Throw away all the junk food in the house.
B.
Shock his system by going on a juice cleanse.
C.
Start on a strict diet of only chicken and vegetables.
D.
Try to eat at least three servings of veggies a day.