Want to cheaply make snacks that cause cavities

After trying a few times, I realized that the snack that causes cavities the cheapest is 'Candy Cheese', which uses the fewest acorns. Giving it 4 times is enough! The number of snacks given for stars 3 and 4 didn't change. To change the evolution path, you need to make it sick twice, so you have to give Candy Cheese a total of 8 times. The total number of acorns used is 960! Wait... if I can just use the Candy Cheese that was already in the Sweet Cafe from the start, then I don't need any other sweets...?