resh squeezed OJ is a classic (and tasty) morning beverage, but that doesn't mean it can't be improved on. For even more nutritional benefit, you'll want to opt for a store-bought variety that's fortified with vitamin D. Along with fatty fish and fortified milk, fortified OJ is one of the few dietary sources of the sunshine vitamin, higher levels of which have been linked to a lower risk of osteoporosis, depression, and certain cancers.
Whichever OJ you prefer, stick with one small glass a day, Giovinazzo advises. Fruit juice is high in calories and sugar, she says, and shouldn't replace whole fruit in your diet.