Phytate, phosphorus, phytase for dogs, cats on plant-based pet foods

Phytate phosphorus may be a limiting factor in new plant-based pet foods. In addition to supplementation, use of a phytase enzyme may be needed to unlock the phosphorus and make it more bioavailable.

Aldrich G 120x120 Headshot
Greg Aldrich, Ph.D.
April 22, 2022
Focus on chemical element Phosphorus illuminated in periodic table of elements. 3D rendering
Focus on chemical element Phosphorus illuminated in periodic table of elements. 3D rendering
The bioavailability of phosphorus in plant-based pet foods may present new challenges for formulators. | HT Ganzo I iStock.com

In years past, we seldom pondered phosphorus availability in pet diets. That was because phosphorus was often found in excess (see Petfood Industry magazine, July 2021). With animal-based protein concentrate meals (rendered proteins), the level of phosphorus has been abundant and the bioavailability high — nearing 100%.

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