By Jamie Leach
One large egg is approximately 70 calories in weight and contains six grams of protein.
A portion of plain, nonfat Greek yogurt weighing 5.5 ounces contains approximately 100 calories.
Tuna is an exceptionally high-protein food source that also contains vital lipids, such as omega-3.
On your next road excursion or travel day, stock up on jerky as a protein-packed snack that requires no preparation.
There are nearly four grams of protein and just under 100 calories in one tablespoon of peanut butter.
Although all cheeses contain protein, if you are attempting to consume the most protein possible in a 100-calorie.