
05/17/2025
** Attention to our clients that feed HILL’S z/d or i/d foods. Please be aware that Hill’s has upgraded these products with some notable changes (see below) and they will begin shipping this month. **
For those pets eating Hill's z/d Hydrolyzed Chicken:
Hill’s Prescription Diet z/d Hydrolyzed Chicken Flavor will now include a probiotic called ActivBiome+ Digestion! It is the same therapeutic dog and cat nutrition with the addition of a unique prebiotic blend, ActivBiome+ Digestion. This food is clinically shown to firm loose stool in 3 days in dogs and now includes nutrition clinically shown to improve stool quality in cats. Due to the increase in dietary fiber in the new formula, we recommend a gradual transition for dogs currently eating canine Hill’s Prescription Diet z/d varieties. A transition is ideal, but not required, for cats currently eating Hill’s Prescription Diet z/d varieties. Please be aware that the upgraded products (dry and wet) will be DARKER in color than the current formulas.
Hill's i/d (Adult):
The adult products are also getting an upgrade: each Hill’s Prescription Diet i/d Canine and Feline formula for adults will now include ActivBiome+ Digestion for digestive health and S+OXSHIELD to promote urinary tract health. The appearance of the kibble will maintain its disk shape, but the color of the feline kibble will naturally change with the inclusion of the new ActivBiome+ Digestion technology ingredients. Transitioning from the current i/d formula to the upgraded i/d Lifestafe product is not expected to cause GI upset. A transition is only recommended in cases for pets with chronic GI conditions that are on this diet long term (a gradual transition over seven days is recommended).
To learn more:
https://www.hillspet.com/about-us/nutritional-philosophy/innovations/activbiome-and-microbiome-technology
https://www.dvm360.com/view/upcoming-microbiome-based-nutrition-products-announced-at-vmx