Not if you’re careful. One thing that might cause problems is the seeds, so keep an eye on your buddy after you feed them to him. And there’s also the fact that strawberries happen to be one piece of produce that is the most pesticide-laden of them all. This can, of course, be toxic to any rat and you’ll want to be aware of it when feeding him this fruit. A thorough cleaning of the strawberries is necessary.
That aside, rats do greatly benefit from a variety of fruits and vegetables, as well as other fresh foods you can throw in the mix. If you choose to give your rat strawberries, it is best to cut the fruit into small pieces, say about a teaspoonful, so it’s gentler on their digestive systems. Other ideas for fruity snacks are cherries, grapes, apples, bananas, and even melons.