Cooked sweet potato, yes; raw chunks, no
A kitten can eat sweet potato once it has been cooked soft and served plain, in pieces small enough for a little mouth to manage. Baking, steaming, or boiling all work. What changes the answer is the state of the flesh: cooked sweet potato yields and mashes, while raw sweet potato is dense and hard, difficult for a kitten to chew and harder still for her stomach to break down.
Serve it as a thumbnail of mash on top of her normal food or as a few soft cubes she can mouth easily. It is a side note in her diet, not a vegetable course.
What sweet potato brings to a kitten's bowl
Sweet potato offers gentle fibre, which can support comfortable digestion in small amounts, along with naturally occurring vitamins from its deep orange flesh. It is also starchy and filling relative to a kitten's size, so a generous scoop can quietly displace the protein-rich kitten food she actually needs for growth.
Kittens are built to thrive on animal protein, and plant foods sit at the edges of that design. A little sweet potato used as a soft, interesting extra respects that balance; a bowl built around it does not. Cats in the wild would meet this food never, which is a useful reminder that it is a tolerated guest rather than a natural staple.
Preparing sweet potato for a small mouth
Wash and peel the sweet potato, since the skin is tough even after cooking, then cook the flesh until a fork slides through with no resistance. Mash it with a little of its cooking water if needed, and let it cool fully before serving, because soft centres hold heat longer than they appear to.
Serve it completely plain. Holiday-style sweet potato with butter, brown sugar, marshmallow, or warming spices is a people dish, and seasoned roasted cubes from your own dinner carry oils and salt that do not belong in a kitten's portion. If family meals are where she cadges tastes, set aside her plain piece before the pan gets dressed. Leftover mash keeps in the fridge for a day or two in a covered container, but serve each helping fresh from the spoon rather than leaving a dish of it down between meals, where it dries out and gathers dust and flies.
Portions, stools, and knowing when to stop
Because sweet potato is fibrous and starchy, too much can swing a kitten either way: softer stool from the fibre, or a gassy, uncomfortable belly from a portion her gut was not ready for. Start with a teaspoon of mash, wait a day, and let her digestion vote before offering it again.
Call your veterinarian if she vomits repeatedly, passes loose stool for more than a day, strains, or loses interest in her regular food, since a kitten who fills up on extras and skips her complete diet needs a prompt reset. A kitten who enjoys a little mash and stays bright is fine to meet it again occasionally.
A quick entry in KinsLe under Care Teams records the amount, the day, and the result, so the next person cooking does not accidentally serve sweet potato three days running.