Dr. Oz calls Raspberry Ketone #1 Miracle for Burning FatDr. Oz calls Raspberry Ketone #1 Miracle for Burning Fat. They are the primary aroma compound of red raspberries. Yummy! Ultimate ThermoFit contains Raspberry ketones combined with a weight loss formula. It promotes increased calorie burning, reduces appetite, and provides energy. It also helps boost your metabolism. With any weight loss diet it is best to combine these with a healthy diet and regular exercise.