A serving of nonfat Greek yogurt is rich in protein and low in calories.
Cottage cheese is high in protein and can be a satisfying low-calorie snack.
Hard-boiled eggs are portable, protein-packed snacks that are also low in calories.
A small serving of tuna salad made with light mayo or Greek yogurt is protein-rich and relatively low in calories.
Roasted chickpeas are a crunchy, high-protein snack option.
Quinoa is a complete protein source, and a quinoa salad with veggies can make a nutritious and low-calorie snack.
Look for protein bars with minimal added sugars and lower calorie content for a convenient snack option.