I tried store-brand Greek yogurt from Whole Foods, Trader Joe's, Costco, and Wegmans. The winner has a permanent spot in my fridge.

I compared plain Greek yogurt from Wegmans, Costco, Whole Foods, and Trader Joe's.Andrea McHugh

• My family tried plain Greek yogurt from four grocery stores and ranked them from worst to best.
• I found Trader Joe's Greek nonfat yogurt too tangy, and my daughter gave it a thumbs down.

My family consumes a lot of Greek yogurt. It's low in carbs, high in protein, contains probiotics, and serves as a filling breakfast or snack for my 9-year-old daughter.

Greek yogurt has also become an increasingly popular grocery-store item in recent years. In fact, according to market intelligence company Skyquestt, the global Greek yogurt market is worth billions.

Though many brands offer Greek-style varieties, I find they're often twice the price of standard plain yogurt. So, to see which Greek yogurt is the best value, I tried store-brand versions from Trader Joe's, Whole Foods, Costco, and Wegmans.

I bought the most basic plain Greek yogurt I could find at each store and sampled them without any toppings. All were nonfat except the 365 brand from Whole Foods, which contained 3.5% milk fat.

Here's how the Greek yogurt stacked up, from worst to best.