sometimes sanity takes vacation time on me (keieeeye) wrote in heroes_tv,
Probably the writers haven't much thought about that. :P For that matter Nikki would probably need extra energy for her super strength as well - likely ALL of them do to power their abilities. But I think it might not be as bad as it could be, because they've evolved and all that, so perhaps part of the ability is a more efficient use of the energy they get from food and oxygen.