Just remember to get several servings per day from the four basic food groups: salt, fat, sugar, and preservatives.
Do you remember the four food groups: Meat and Beans, Fruits and Veggies, Milk and Dairy, and Grains. Each meal, pick one serving from each group. What could be simpler. There was even a picture of a square cut into four smaller squares illustrating the four groups.
I always think of the four food groups as...
Salty, greasy, crunchy, and sweet.