"What should you eat to maintain health/stay healthy?"
It means. .......... To maintain your health
It means we should drink water to maintain our health.
To maintain.
"Comer allí" means "Eat there."
It means health. It can also be the word used when making a toast: ¡Salud!
Salud
comer means "to eat".
"Salud, mi familia" (with a coma, or spoken with a slight pause after the word Salud) is a toast that literally means "Heath, my family"
"Salud" means "health" in Spanish and is the traditional word for a toast.
Como in English is 'how'
Health
Te quiero comer = I want you to eat.