I think these are great tips and easy to implement into your daily cooking and baking routine. Both fat free and low fat sour cream, yogurt, and milk are used on a regular basis in the lizzycooks kitchen.
In baking, use plain fat-free or low-fat yogurt or fat-free or low-fat sour cream. Another way to decrease the amount of fat and calories in your recipes is to use fat-free milk or 1% milk instead of whole or reduced-fat (2%) milk. For extra richness, try fat-free half-and-half or evaporated skim milk.
-American Heart Association
In baking, use plain fat-free or low-fat yogurt or fat-free or low-fat sour cream. Another way to decrease the amount of fat and calories in your recipes is to use fat-free milk or 1% milk instead of whole or reduced-fat (2%) milk. For extra richness, try fat-free half-and-half or evaporated skim milk.
-American Heart Association