2. Greek Yogurt
Like milk, Greek yogurt contains a large amount of protein, but also vitamin B12, about 1.3 micrograms per serving. As much as possible, avoid eating yogurts in which sweeteners come in. Still, if you want to feel a sweet taste, just add fresh or candied fruit.
It may be a little too creamy, but Greek yogurt goes great in the morning. A perfect way to start your day is to have a yogurt, but it is also a great snack food to have at some point during the day, or even to replace the ice cream or other less-healthy foods that you might have as a midnight snack.