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
To maintain a 100-calorie nibble, garnish yogurt with halved cherry tomatoes to increase fiber content.
Tuna
Although jerky meats come in a variety of varieties, beef jerky is among the most well-liked.
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 serving.
Cheese