Whether you need a quick bite before the gym or a small snack to tide you over while out and about, protein bars are a convenient way to pack in protein and manage hunger. And with protein on everyone’s minds these days, there’s no shortage of protein bars to choose from, which is why we consulted dietitians to find the best protein bars that blend quality ingredients with specific needs. Based on their insights and staff recommendations, we think the Clif Builders Protein Bar is the best option for most people, containing 20 grams of plant-based protein to help rebuild muscle.
After speaking with dietitians and nutritionists, we rounded up the best protein bars of 2026.
Illustration: Forbes / Photos: Retailers
When shopping for protein bars, you might be inclined to opt for the bar with the highest protein content, but it’s important to first consider your protein needs and intended usage, plus other nutritional content. “When compared to whole food sources that provide vitamins, minerals and more, many protein bars can have a very low nutrient density, so choosing the right one matters,” says Kelly Jones, a board-certified specialist in sports dietetics. With this in mind, we considered countless protein bars, looking at their protein amount and source, as well as calories, carbs and more. Below, the best protein bars of 2026.
Want to read this story later?
Get a link sent straight to your inbox.
We’ve sent this story to your inbox.
Why We Named It Best Overall
The Clif Builders are a go-to protein bar for both Jones and her clients, and she especially recommends the Chocolately Mint and Vanilla Almond flavors. “They have 20 grams of high-quality plant-based protein per bar to help rebuild muscle. They’re free of artificial sweeteners and made with carbohydrates to help replenish muscle energy stores,” says Jones. The 20 grams of protein comes from soy protein isolate, a complete protein derived from soybeans that contains essential amino acids to help support the repair and recovery of muscles, which makes the bars a great option after strenuous workouts. The bars are also a low-glycemic index food and digest more slowly for sustained energy.
Who Won’t Like It
While the bars contain no artificial sweeteners or high-fructose corn syrup, they contain 16 to 17 grams of added sugar depending on the flavor. Jones notes that those with high-activity levels may benefit from added sugars “to help replenish muscle glycogen (energy) stores,” but if you want to limit your sugar intake, the brand offers a version of the bar with reduced sugar (5 grams in total). Just keep in mind that these bars contain only 16 grams of protein.
Why We Named It Best Low-Carb
The amount of carbs in an IQBar varies from flavor to flavor, but the total never exceeds 12 grams, with most bars containing 1o grams of carbs. In addition to the minimal carb content, the bars have anywhere from 6 to 9 grams of dietary fiber, so most bars have at least 2 to 3 net carbohydrates. The 12 grams of protein per bar comes from pea protein, and the bars are vegan, gluten-free, soy-free and kosher to appeal to different diets and dietary restrictions. The bars also bear a certification from the Clean Label Project, indicating they’ve been tested for heavy metals, pesticide residues and other chemicals of concern.
Who Won’t Like It
With only 1 to 2 grams of sugar per bar, and no added sugar, the bars aren’t overly sweet, although several reviewers report they do the job satisfying sugar cravings. Customers also note that the texture is soft, slightly chewy and has a touch of graininess, with some wishing they had crunch to them.
Why We Named It Best Vegan
It can be difficult to find a plant-based protein bar that delivers as much protein as those that contain soy or whey, but Aloha’s vegan bars manage to provide 14 grams of brown rice and pumpkin seed protein. The two proteins come with added benefits—the brown rice protein contains amino acids to support liver and kidney function, while the pumpkin seed protein is rich in iron, zinc, magnesium and antioxidants. Aloha uses tapioca fiber to pack its bars with 10 grams of dietary fiber derived from cassava root that is also a prebiotic to support better gut health overall. For added peace of mind, the bars are USDA Organic and Non-GMO Project certified, and Aloha is a Certified B Corporation (B Corp).
Who Won’t Like It
Monk fruit is used as a sugar substitute in these bars, and since it’s considerably sweeter than regular sugar, the bars contain at most 5 grams of added sugars for a subtly sweet taste. I keep the Chocolate Mint bars on hand for an easy midday snack or to refuel post-gym, and while I enjoy them, I find myself a bit underwhelmed with the flavors, getting only a hint of peppermint and not a super strong taste from the chocolate coating either.
Why We Named It Most Healthy
If you’re curious about what’s in an RxBar, all you have to do is look at the front of the package, where all the ingredients are listed. The bars get most of their protein from egg whites, with some protein delivered via cashews, almonds or peanuts, depending on the bar. Each RxBar contains two dates to lend some sweetness without any added sugars. Baby and kids gear writer Alicia Betz generally considers herself averse to protein bars, but when she was pregnant with twins and needed to up her protein intake, she found RxBars were one of the few she could stomach and even enjoy. “I like that they have very few ingredients, and they don’t have the chalky texture that I’ve found in many other protein bars,” says Betz.
Who Won’t Like It
Compared to bars like the Clif Builders and David Bars, RxBars is on the lower end of the protein scale. Jones recommends bars with at least 15 grams of protein as a standalone snack, but she likes RxBars for those with lower energy needs or when supplemented alongside another snack. Because the bars use dates not only as a sweetener but also as a binder, they’re extremely sticky and chewy. For a “softer and enjoyable texture,” Jones specifically recommends the Vanilla Almond and Peanut Butter flavors.
Why We Named It Best For Building Muscle
A protein bar alone isn’t going to help build muscle, but it can help. “The most important factor in building muscle mass is engaging in regular resistance training. From there, meeting total calorie and protein needs is critical to optimize muscle repair and growth,” says Jones. Containing the highest protein content on this list, the nearly 30 grams of protein in David bars are a convenient way to get you one step closer to your protein (and muscle) goals. Despite the 28 grams of protein, former associate director of commerce data Catie Jaffe says the bars don’t taste like protein powder, unlike other high-protein bars she’s had. “The David bars are the first I have tried that are as dense and filling as I’ve come to expect without any of the chalky texture or flavor,” she explains.
Who Won’t Like It
These bars contain 0 grams added sugar, but they are sweetened with sugar alcohols, including maltitol, which can cause digestive issues for some. It’s also important to note that ConsumerLab tested the David protein bars in 2025 and found discrepancies in fat content. The bars contain the ingredient EPG, a plant-based fat alternative that cuts calories, providing only 0.7 calories per gram instead of 9. During ConsumerLab’s testing, the EPG was detected as fat content, although David says that EPG largely resists digestion, and that the brand is adhering to the FDA’s requirements for how EPG must be displayed on labels.
Why We Named It Best Meal Replacement
“If you’re in a pinch, a protein bar can work as a quick meal substitute, but try not to make this a habit,” says Lauren Manaker, MS, RDN, LD. For instances when you don’t have time for a full meal but need something filling, the Perfect Bar is a calorie-dense option with up to 17 grams of protein. Perfect Bars are made with organic whole-food ingredients and superfoods, including chia seeds, flax seed, kale and more. They’re also high in B vitamins, which convert food to energy, and the bars contain several minerals including zinc, copper and magnesium. Unlike the other bars on this list, Perfect Bars aren’t baked or heated but cold pressed, which gives them a unique cookie dough texture (just keep in mind that the bars do have to be refrigerated).
Who Won’t Like It
Most of the flavors of the Perfect Bars contain upwards of 300 calories, so if you’re calorie conscious or already meeting your caloric goals, you might consider using them as a backup for travel days or when your eating schedule is abnormal.
Why We Named It Best Low-Sugar
Finding a protein bar that tastes good without containing a significant amount of added sugar isn’t always easy, but it’s not impossible. The Kind Protein Max bars only contain 1 gram of sugar from allulose, a naturally occurring, low-calorie sugar. Despite the minimal sugar, the bars manage to deliver a sweet flavor that isn’t overly sugary. Each bar contains 20 grams of protein (from peanuts and soy protein isolate) for a satisfying and muscle-friendly snack. If you’re familiar with Kind bars, then you know they have a crunchy texture, and the Protein Max bars are no different, offering a crispness that’s a departure from the dense and ultra-chewy protein bars.
Who Won’t Like It
The Kind Protein Max bars only come in two very peanut-forward flavors: Sweet & Salty Caramel Peanut Crisp, and Crispy Chocolate Peanut Butter. If you’re not a fan of peanuts or like having more options to choose from, these bars might feel limiting in terms of flavors.
How We Chose The Best Protein Bars
- Protein type: We took into consideration various dietary needs and fitness goals and made sure to include several protein types, including whey, soy and pea proteins. We also considered each bar’s protein content per serving.
- Staff recommendations: We polled our staff for recommendations and and used their firsthand experience and insights with various protein bars to inform our picks.
- Expert insights: We consulted with registered dietitians for their guidance on the most important factors to look for in a protein bar, as well as protein bars they recommend.
What To Consider When Shopping For The Best Protein Bars
- Nutritional value: It’s important to look beyond the protein content of a protein bar; you really need to consider the entirety of the nutrition label. Jones and Manaker recommend evaluating a bar’s fiber, fat and sugar content, and keeping an eye out for minerals like zinc and calcium. “When compared to whole food protein sources that provide vitamins, minerals and more, many protein bars can have a very low nutrient density, so choosing the right ones matters,” says Jones.
- Protein The type of protein a bar uses can determine taste, texture and whether or not you’re getting the proper nutrients for your muscles. Animal-based proteins like whey and egg whites contain all nine amino acids necessary for muscle repair and growth, while plant-based proteins sourced from peas or brown rice might lack some of the essential amino acids. However, plant-based proteins will often combine different types of protein to achieve a complete amino acid profile.
- Taste: Like protein powders, protein bars often have a chalky texture and taste, or an extreme artificial sweetness to them. To avoid a chalkier texture, look for protein bars that have fillings to break up the dense texture. If you don’t want an overly sweet bar, be mindful of the sugar content, particularly among bars with high amounts of added sugar.
- Dietary restrictions: Most protein bars clearly label or advertise when they’re free of a particular ingredient like dairy or gluten, and whether they meet the requirements of certain diets like paleo or keto. Still, it’s always best to check the bar’s nutrition label and ingredient list to ensure it adheres to specific diet requirements.
- Matching with your use case: When you plan to eat a protein bar will likely influence the protein bar appropriate for the occasion. If you need a snack after a workout, a bar with a higher protein content is going to help with muscle repair and growth, whereas if you’re looking for a bar to eat in lieu of a meal, you’ll want to opt for one that’s nutrient-dense and made of whole foods.
- Transparency: Some protein bars are third-party tested to check ingredient and nutrition accuracy and purity, though this is more common among protein powders. However, third-party certifications like Clean Project, USDA Organic or Non-GMO Project certified help give more insight into the production process of the bar.
Why Trust Forbes Vetted
Our gear team frequently covers health and wellness topics, and our guides include everything from treating plantar fasciitis to the best massage guns.
- Lee Cutlip, author of this guide, is an editorial assistant at Forbes Vetted working across the gear and sleep categories. She has covered several topics for the gear vertical, including the best sports bras.
- Cam Vigliotta is the gear editor at Forbes Vetted with over six years of experience reviewing outdoor, training and wellness equipment. He also holds a degree in kinesiology and has covered other popular supplements, including creatine and electrolyte powders.