I'm a competitive swimmer who follows a high-protein diet. Here are 7 things I always buy at Costco.

The Kirkland Signature stuffed salmon and Rastelli's ground beef are some of my favorite high-protein foods from Costco. Jordan Fargo As a competitive swimmer who follows a high-protein diet, I love grocery shopping at Costco. Some of my favorite premade meals include the Kirkland Signature street tacos and stuffed peppers. I also love picking up the West End Cuisine chicken skewers and Rastelli's grass-fed ground beef. As a busy competitive swimmer who always needs his protein fix, I prior...