I tasted and ranked 5 different protein sodas from the grocery store. The best-tasting pick also had the most protein.

Cost: $1.99 for one 12-ounce can

Calories: 70 calories

Protein: 15 grams

Added sugar: 0 grams

I love Aldi’s wide selection of products, so I wasn’t surprised to see it offers its own take on protein drinks through its private label, Summit Popz.

It’s labeled a “sparkling beverage” rather than a soda, but I included it in this ranking because it met my criteria: It has added protein and is carbonated and sweetened.

It had a clearer cherry-and-lime flavor that made it seem more authentic to its label, and wasn’t too sweet despite the use of sucralose.

I appreciate the price, too, as it was the...