Yes brussel sprouts are okay for dogs to eat in moderation.
As long as you're not feeding your dog too many brussel sprouts the dog can safely eat brussel sprouts.
If you feed your dog too much brussel sprouts then it can cause gas buildup in the dogs stomach and lead to a lot of farting, intestinal issues and even diarrhea.
But feeding your dog a little brussel sprouts can be very healthy for the dog.
My dog eats some brussel sprouts every once in awhile and has never had any issues with eating them.
But one time I remember feeding my dog too many brussel sprouts and he got diarrhea and was farting a lot.
So just make sure you don't overfeed the dog the brussel sprouts and your dog will be okay.
The brussel sprouts are very nutritious for both dogs and humans.