Yes, they can. Actually, we recommend giving your turtle or tortoise human food. Experts say that you should feed your pet the correct type of turtle food and complement its diet with certain human foods as well. As we have already told you, you should always keep in mind the type of turtle you have. For example, you can give raw fish to an aquatic turtle but not to a land tortoise.
The same goes for fruits, vegetables, and meat. Some species need certain types of food while these same types of food may make another species very sick. This is why it is very important for you to keep in mind what type of turtle you have and what that species can consume safely.