I'm on antibiotics and i'm very hungry, a lot more than usual. why am i so hungry?

Metabolic demands: It may be that your body is looking for extra energy and nutrients to fight whatever ailment those antibiotics have been prescribed for. I don't believe it's the antibiotic itself -that would be unusual. The body 'knows' how to heal and is probably telling your appetite sensors in the brain to eat more-since to fuel your immune system you need energy/nutrients. It's important to listen to yourself