I found this image on a tumblr blog called I Love Old Magazines. Its from a 1976 issue of Ebony.
Most of the information seems to be fairly good although the way we think about feeding our dogs has certainly changed quite a bit over the past 35 years.
Most pet foods sold in grocery stores are full of corn and by-products. We recommend you try to stick to natural foods made with whole grains and plenty of real meat (never corn, wheat, soy or by-products.)
Despite all the fancy breeding, Cavalier King Charles Spaniels will still eat anything. Myra Savant Harris once told me that she imported some beautiful Cavaliers from England. She thought these proper lady Cavaliers would be more refined in their tastes. Perhaps they would prefer tea and crumpets? Unfortunately, they ate poop, just like their American counterparts.
A dogs digestive system is far more sturdy than our own, but it’s still important to make sure you watch your dogs diet. Obesity is an especially great danger to Cavaliers.