I am perfecting a healthy muffin recipe but would like to know if it is essential I use some kind of fat?

I would like to know the best fats to use if I have to use fat or any alternatives to fat in a baking recipe eg. just creme fraiche?I am perfecting a healthy muffin recipe but would like to know if it is essential I use some kind of fat?
Well if you're talking about the oil in most muffin recipes, you can substitute apple sauce. It cuts a ton of fat, and adds nutrients and fiber. You'll never know the difference!I am perfecting a healthy muffin recipe but would like to know if it is essential I use some kind of fat?
low fat blueberry muffin





Ingredients


2 cups all-purpose flour


1/3 cup sugar


1 teaspoon baking powder


1/2 teaspoon baking soda


1/4 teaspoon salt


1 cup nonfat milk or soymilk (you can also use low fat buttermilk)


2 tablespoons canola oil


1 large egg, lightly beaten or 1/4 cup Egg Beaters egg substitute


1 cup blueberry


Directions


1Preheat oven to 400 degrees. Coat a nonstick 12-cup muffin pan with cooking spray or line with paper cups.


2In a large bowl, stir flour, sugar, baking powder, baking soda and salt together.


3In a small bowl, combine milk, canola oil and egg.


4Make a well in the center of the dry ingredients and add milk, oil and egg mixture. Stir until just moist. Fold in blueberries.


5Fill muffin cups 2/3 full and bake 18-20 minutes until golden.


6Cool on wire rack.
look at the picture.


http://i109.photobucket.com/albums/n54/m鈥?/a>
You can use applesauce, banana or pawpaw fruit puree.
I know you can use applesauce in place of oil but the texture will be more crumbly