Don’t just think navels. Tangerines, mandarins, clementines and cara caras (our seasonal favorite) are rich in Vitamin C too. Cherry suggests swapping your morning OJ for a whole orange. “It has more fiber and takes longer to eat than the juice, to help you feel full on fewer calories.” That’s 45 calories per orange, to be precise. Clementines are the perfect snack: small, easy to peel and pop, with soluble fiber that “breaks down upon digestion and forms a gel to stabilize your blood sugar levels,” says Sophie Pachella, an ACE-certified weight-loss expert and founder of sophieyogurt.com. You can also try throwing in a few slices of the orange family in with your winter vegetables or stews to boost their flavor.