Like carbon neutral, but used when referring to the health value of a meal.
"I had a coronary neutral lunch today. I couldn't resist the pigfat basted steak with triple cheese on the menu, so I offset it with an extra bowl of salad."
(MASS-iv KORE-o-nair-ee) noun. A Jewish heart attack
Rose: Oy Gevalt! Sylvia, have you heard the news?
Sylvia: Nu?
Rose: Eugene had a massive coronary today.
Sylvia: Thank G-d it wasn't a goyish heart attack.