Canned pumpkin is best but you can use any pumpkin. However, I recommend using sugar pie pumpkins or butternut squash. These varieties are sweeter than regular carving pumpkins and have less moisture, resulting in a more consistent texture for your healthy pumpkin muffin recipe. Also, it would help if you strained homemade pumpkin puree to remove excess water. Otherwise, you will end up with a soggy muffin!