Hi. As a Brit and mentor, but not a teacher, I would advise as follows:
Alan is eating a turkey for lunch. OK.
Alan is eating. OK.
Blair is feeding a turkey. This means the turkey is eating something that was given by Blair, ie, Blair is not eating the turkey.
Carl is feeding. It means he is feeding himself, although I would rather say "Carl is eating". Animals (and babies) feed - children and adults eat. To say someone is feeding suggests to me that you believe that they are eating like an animal!
I would not pronounce 'feeding' as: "fee + dee + ng".
Hope this helps
Interested in Language