I used to work with a woman who would fix breakfast for her husband and two sons but she would not eat. Then she would come to work and drink a can of Coke and eat a Twinkie for her breakfast.
She was smart, healthy and average weight, but she had this weird breakfast habit.
Breakfast of Champions.
When I was in Army aviation, it was said that a Mountain Dew, candy bar & cigarette was a real helicopter pilot’s complete & balanced breakfast.
IIRC, Jolt Cola was introduced just as the disastrous New Coke came out. The former’s sales soared.