One large egg is approximately 70 calories in weight and contains six grams of protein.
Eggs
A portion of plain, nonfat Greek yogurt weighing 5.5 ounces contains approximately 100 calories.
Greek Yogurt
Tuna is an exceptionally high-protein food source that also contains vital lipids, such as omega-3.
Tuna
About 10 grams of protein and slightly more than 100 calories are contained in a one-ounce serving.
Beef Jerky
There are nearly four grams of protein and just under 100 calories in one tablespoon of peanut butter.
Peanut Butter
Although all cheeses contain protein, if you are attempting to consume the most protein possible in a 100-calorie.
Cheese