New sources of plant-based proteins may be part of the answer for extending and expanding the supply of protein in pet foods. These will provide a novel approach to the thought process beyond traditional sources.

Yeast has been explored for decades as a complementary protein source. With supply chain and sustainability becoming major issues, it may be time for yeast protein meals to become a bigger player.

Black soldier fly larvae as a protein meal have emerged on the pet food ingredient scene.

Insect proteins, single-cell proteins, microalgae and pulse proteins will expand pet food's options as alternative proteins gain ground.

There are many quality choices regarding organ meats and beef by-products, despite what human squeamishness would have you believe.

There are many options and challenges to beef in the supply chain, both historically and currently; in spite of that it remains a popular pet food ingredient.

Dr. Greg Aldrich provides an overview of the origin and potential benefit for adding cheese to pet foods and treats.

A staple in pet food chicken meal has undergone modest changes to its definition and composition in the past 15 years, but challenges remain.

Despite claims to the contrary, soybean meal remains a consistent, quality, sustainable and nutritious part of value-minded pet foods.

Fish meal remains a high-quality source of protein and omega-3 fatty acids, but supply and preservation challenges may force pet food to be more pragmatic in their choices.