You can only have one food group for the rest of your life, where does your loyalty stand?

Animals.

this is a non-answer but i think you'd die from malnutrition, disregarding any nutritional supplements

What group is cheese in? That one.

I may not last long but I'll die doing what I loved.

Can I just say Indian? :)

I’d narrow it down to the fruits and veg. But if I had to pick one it would be fruit. At least I could stave off scurvy.

I'll eat the plant group, I think I'm covered.