According to Alexon, this proportion rule also applies to breakfast: stick with lean proteins, fibre-rich fruits, and even some veggies (perhaps in a smoothie or an omelette). Even on rushed mornings, she says, you can do better than sugary dry cereal or freezer waffles: "We don't always have time to make a nice egg white omelette every morning. I like to take some fruits and veggies and throw them in the blender with some protein powder." She suggests finding a combination of fruits and greens you like (or even several options to mix it up) and combining it with a whole protein, like whey isolate, for a filling, energy-packed start to the day.