If every atom in my body was shrunk making me 5 inches tall, could I eat normal size food?

Would my smaller cells be able to convert energy from elements of a much larger atomic structure? Could I drink normal H2O? Inhale O2? What form of carbon would I exhale after breathing in "giant" atmospheric elements? I've dug myself a hole -- quickly resembling a grave . (This one's for you, Frank. Tailored for an MIT Higgs professor of abstract physics. And, as always, TYVVM.)