I do hold stock in the theory. But it means to give the older dog it's food first. Not wait to feed the other dog.
I have five dogs, I feed twice a day...feeding would be a full time job for me!!
Hondo Von Dopplet L Bauernhof "Hondo"- GSD
Lilie's Tug McGraw "Tug" - Golden Retriever
Maggie - Mini Dachshund (Rescue)
Lonestar Pivo - Texas Blue Lacy
Ashe - Barn Cat
Katie / APHA