Mac’s pet foods are made with the protein of cats and dogs.

The protein is then mixed into a mix of corn, wheat, rice, and soybean flour, and the mix is then ground up to make a pet food called Mac’s Protein Pet Food.

The formula was developed by an independent food-science company and sold to pet food manufacturers.

The product has become popular in the pet food industry, but critics say it’s not nutritious enough for cats or dogs, which can consume up to 20 percent of their daily calories from protein.

And it has no nutritional value for dogs.

For example, it’s only made from beef.

The problem, said one critic, is that the formula is not nutritionally complete.

“It’s a very high-protein, high-carbohydrate product,” said Diane A. Ochs, an associate professor of animal nutrition at the University of Southern California.

“That’s not a good product for dogs or cats.”

Mac’s has been criticized by the American Veterinary Medical Association and other animal health organizations.

In a statement, the group said it supports efforts to promote animal welfare and promote quality pet foods.

“This is a critical product to pet owners and veterinarians, and we believe it is safe to use for pets,” said the statement, issued by the AVMMA.

But the AVPLA says the product has not been approved for use by pet owners.

The AVPMA also said it opposes the inclusion of animal protein in pet food because it would lead to the growth of bacteria.

But Och is concerned about the ingredients in the Mac’s protein.

“They have no animal protein, and it is not a food source for pets, but it is a food for humans,” she said.

The American Veterinary Diet Association says that the Macs Protein Pet Foods are made from a mixture of corn meal, wheat flour, soybean protein, corn syrup, and calcium phosphate.

It also said that the mixture contains “no animal ingredients other than a mix that is made up of all of the ingredients of macaroni and cheese, chicken soup, pasta sauce, and egg replacer.”

It adds that the product is not high in protein because “it is a low-protein pet food for cats.”

And the American Pet Products Council says the macaronis contain “no more than 0.1 grams of protein per pound of product.”

According to the AAVMA, a pet diet has to be formulated to meet the requirements of the ADA.

“The ADA requirements require a diet that is low in calories, high in nutrients, and that includes a balanced diet for all age groups, from young children to adults,” the ACPAC statement said.

Mac’s also sells a protein-rich pet food with similar ingredients, called Macs Pup Powder.

It’s also made from wheat flour and soybeans, but that product is also made with animal protein.

It has been around since 2002 and is sold in pet stores and online.

The FDA has not responded to our request for comment about whether the MacS Protein Pet Products meet the ADA’s requirements.