• I tried protein bars from One, Think!, Quest, Pure Protein, Clif Builders, and Barebells. • The Clif Builders protein bar was a bit high in calories, but I enjoyed it. • The Barebells bar was my top pick, and I might even choose it over a candy bar.

Protein bars are becoming really, really popular.

The multibillion-dollar protein-bar industry is projected to grow to over 7 billion by 2029 — so it's no surprise there are a lot of bars on the market. But they can't all be winners. And they don't always taste great.

To help find which is the best to buy at the grocery store, I bought protein bars in similar flavors from six different brands to review. The amount of protein, calories, fiber, or added sugars a person is looking to consume will vary, so I focused my reviews on taste.

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