Greek Yogurt
Greek yogurt is a great substitute for sour cream. Greek yogurt has been strained to remove most of its whey, whereas regular yogurt has a greater proportion of liquid, or whey. As a result, yogurt becomes thicker and tangier, tasting a lot like sour cream.
Greek yogurt also has more protein and fewer calories and fat than full-fat sour cream. Regular Greek yogurt has 37 calories, 3 grams of fat, and 2 grams of protein per ounce (28 grams). In the same amount, there are 54 calories, 6 grams of fat, and 1 gram of protein in full-fat sour cream. Greek yogurt can be used in toppings, dressings, and dips. In addition, any recipe, including those for baked goods, can call for equal portions of full-fat Greek yogurt in place of regular sour cream.