Zelda64:
Is it possible to get fat, not morbid obese or anything and still remain healthy?
A bit of fat on you is healthy. Life is about optimising what's important to you. You could be a lot fatter and compromise on your lifespan. You don't get to eat your cake and not be fat.
I would suggest you eat a variety of foods and take vitamin and mineral supplements. One of the most serious problems is keeping your joints working. Take supplements that help with that except calcium pills which will kill your heart.