There are many healthy proteins choices for breakfast but it's a matter of personal taste. Eggs are most common and healthy as long as you don't eat too many. One whole egg daily is fine for most people (cholesterol-sensitive people may want to avoid all yolks) and you can add as many egg whites as you like. Low-fat dairy products, such as low-fat milk, low-fat cottage cheese and yogurt are also great options. Lean meats, such as Canadian bacon low-fat turkey, low-fat chicken, lean cuts of pork or lean cuts of beef, all in moderation, are also healthy sources of breakfast-type proteins and perfect to add to an egg white omelet.