Powering up with a smoothie that’s high in protein is a great way to start your day. Most women need about 46 grams of protein per day, and getting a head start in the morning isn’t a bad idea. And while protein powders are convenient, they’re also expensive. You can enjoy protein smoothies inexpensively by adding natural ingredients that come with other nutritional benefits as well. Consider the following 10 clean ways to add protein to your smoothies.