Green smoothies and protein shakes can be a great way of increasing your vegetable intake. My cucumber lemon green protein shake is a refreshing and nutritious option you can have for breakfast or post-workout. Adding some fruit to smoothies is good but adding too much can be a problem for some people who need to regulate their blood sugar. This recipe uses natural sweetener for taste (e.g. Raw Earth or Natvia). I recommend using a neutral-tasting protein powder, such as natural whey protein isolate (WPI) from either 180 Nutrition or True Protein.