well thank you for your mature and refreshing approach to this

I must say we don't get too many here that actually care enough to do this correctly

at 5'10 and ONLY 140, YES I would say if you see food, EAT IT , EAT IT ALL

but you want to go about that smart as well so you don't just pack on FAT

So have you checked out the diet section yet??

I would suggest starting at eating meals every TWO HOURS....not gonna be easy but it will help you pack on GOOD weight