Is it normal to poop this much?

So today, without eating anything, just had few cups of tea and fruit and I did quite a lot of poo. Then about 3 hours later, and 2 chocolate bars later I did a huge pile of poop, like what a donkey would do, just piled it up in the toilet. Why do I shit so much? I might even shit again later tonight. Most days are like this. Is it good to shit a lot, like my body is very good at getting rid of waste?