Best Protein Bars (2026): Vegan, Gluten-Free, High Fiber

Boutayna Chokrane Gear Mar 21, 2026 7:30 AM The Best Protein Bars That Help You Reach Your Nutrition Goals What to prioritize, what to skip, when to enjoy—plus, we’ve selected WIRED’s favorite bars worth trying. Courtesy of Rxbar Save this story Save this story The best protein bars are grab-and-go snacks, not meal replacements. They're most helpful when whole foods aren't available or when your schedule won't allow for a proper meal. The most beneficial sources of protein come with fiber, healthy fats, and other nutrients. (That’s why registered dietitians recommend whole foods over ultra-processed alternatives.) So, while high-protein snacks may boast impressive counts on the label, they’re not always the healthiest option. After consulting the nutrition experts about key ingredients to look for (and what to avoid), we've rounded up the best protein bars that meet those standards. For more tips on protein, check out our guide to the Best Protein Powders and How Much Protein Do I Need? Updated March 2026: I added Aloha Organic Protein Bars, Promix Protein Puff Bars, and Mush Protein Bars as new picks. I added an Honorable Mentions section with more protein bars to consider, as well as a FAQ section that includes a note about David Protein Bars. Lastly, I've included my testing process and updated existing picks with new information, prices, and links. Featured In This Guide More Sections AccordionItemContainerButton How I Test Protein Bars What Am I Testing Next? Honorable Mentions FAQs Best Protein Bars Overall Courtesy of Amazon Courtesy of RxBar Save to wishlist RxBar Protein Bars $25 $22 (12% off Chocolate Sea Salt) $34 Amazon (Nut Butter and Oat) RxBar now offers a couple of different protein bars, but the Classic 12G remains the best. Made from whole foods, the base is a mix of egg whites—a complete protein—dates for sweetness and binding, and nuts (pecans, hazelnuts, cashews, walnuts, peanuts, almonds). I've taste-tested the chocolate sea salt , but RxBar al...