WORST:Onion Blossom It may be your waistline that blossoms if you're a fan of fried onions. "It's good to start off with a vegetable," says Joan Salge Blake, RD, a spokeswoman for the Academy of Nutrition and Dietetics. "But once you fry it, you're frying in calories." The onion blossom at one popular restaurant has 1,949 calories, 161 g of fat, and 4,100 mg of sodium -- more than double the daily sodium limit for healthy adults.