Answer:
What is long and slim, works in light. Has but one eye, and an awful bite?
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
You throw away the outside, eat the inside, then throw away the inside. What is it?
Though blind as well, can lead the blind well.
It's the only vegetable or fruit that is never sold frozen, canned, processed, cooked, or in any other form but fresh
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.