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

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%.

However, as…