09/28/2026
Cat hydration is about more than just getting your cat to drink more water. I used to think keeping my cats hydrated simply meant feeding wet food, adding extra water to their food, and making sure fresh water was always available. But once I started researching cellular hydration in cats, I realized there’s a lot more happening after that water goes into the body.
The body still has to absorb that water, distribute it, and regulate fluid balance. That’s where electrolytes, amino acids, and osmolytes come into the hydration conversation.
Electrolytes help regulate fluid balance throughout the body and across cells. Certain amino acids can be involved in absorption processes in the gut, where nutrients, electrolytes, and water are taken into the body.
But osmolytes were completely new to me.
Osmolytes help cells regulate their own water balance and maintain normal cell volume. And one of the osmolytes cat parents already hear about all the time is taurine.
I already knew taurine was an essential nutrient for cats, but I had never really thought about its role as an osmolyte and in cellular water balance. That sent me down an entirely new rabbit hole about cat hydration.
And that’s why these Cat Years hydration packets caught my attention. They’re formulated with electrolytes, amino acids, and osmolytes rather than simply being another way to add more water.
The biggest thing I learned from researching hydration is this:
Hydration starts with water. It just doesn’t end there.
Especially with cats that may not naturally drink very much, I like having multiple ways to increase their moisture intake and support hydration beyond simply watching the water bowl.