I'm a 65-year-old fitness trainer who stocks up on healthy foods at Costco. These are the 11 products I swear by.

I shop for kitchen staples at Costco. Janet Osborne I'm a 65-year-old personal trainer who stocks my kitchen with healthy foods from Costco. My cart always has frozen protein sources, like wild shrimp and organic chicken breasts. I also love buying healthy snacks, including macadamia nuts and grass-fed beef sticks. As a 65-year-old fitness trainer, I prioritize consistency and simplicity over perfection in my workouts and diet. I avoid fads and strict rules, instead sticking to simple, easy...