Study: Varied calories in diet petfoods confuse pet owners

Because the calorie counts of diet petfoods vary widely among brands, pet owners may be unknowingly overfeeding their pets, according to a study conducted at the Cummings School of Veterinary Medicine at Tufts University.
The study measured the calories in 93 commercial diet petfoods (44 canine diets and 49 feline diets) and found that a pet owner serving one cup or can of diet petfood could potentially be adding more than 200 calories a day to their pet’s diet by switching brands.