Tuna
 

Yellowfin Tuna

Protein Power: 25 g per 3 oz. serving

This meaty swimmer delivers a boatload of easily digested, premium-quality protein. You'll also benefit from the healthy amount of B vitamins and the potent antioxidant selenium in its flesh.

Need to Know: When possible, look for troll- or pole-caught tuna, which are the most sustainable options.