Protein Bar: Calories, Nutrition Facts, and Health Benefits (2026)
A protein bar has 210 calories, 4.2 g fiber and 0 mg vitamin C. Full protein bar nutrition facts per serving and per 100 g, by goal, with blood-sugar and comparison data.
A protein bar typically contains 210 calories, 18 g of protein, and 4.2 g of fiber per 1 bar (60 g). With 10.8 g of sugar and a glycemic index of about 45, it can be a convenient snack option.
This page provides detailed nutrition information for protein bars, focusing on their caloric content, macronutrient breakdown, and health benefits. It also examines how they fit into various dietary goals and compares them to other sweet treats.
Protein Bar Nutrition Facts (Per Serving and Per 100 g)
The following nutrition facts table outlines the key nutritional components of a protein bar, highlighting its macronutrient profile and other essential nutrients.
Values are for 1 bar (60 g).
| Nutrient | Per Serving | Per 100 g | % Daily Value (per serving) |
|---|---|---|---|
| Calories | 210 | 350 | 11% |
| Protein | 18.0 g | 30.0 g | 36% |
| Carbohydrates | 25.2 g | 42.0 g | 9% |
| Fiber | 4.2 g | 7.0 g | 15% |
| Sugar | 10.8 g | 18.0 g | - |
| Fat | 6.6 g | 11.0 g | 8% |
| Vitamin C | 0.0 mg | 0.0 mg | 0% |
| Potassium | 150 mg | 250 mg | 3% |
| Saturated Fat | 3.0 g | 5.0 g | 15% |
| Sodium | 120 mg | 200 mg | 5% |
| Calcium | 120 mg | 200 mg | 9% |
About 43% of protein bar calories come from carbohydrates, 31% from protein and 26% from fat.
Protein Bar by Health Goal
The by-goal ratings section evaluates how protein bars align with common dietary objectives, such as weight loss and muscle gain.
| Goal | Rating | Why |
|---|---|---|
| Weight loss | Fair | 210 calories per serving, with 4.2 g fiber for fullness |
| Blood sugar / diabetes | Moderate | Glycemic load of about 10 per serving |
| Immunity | Fair | Not a significant source of immune-supporting nutrients |
| Digestion | Excellent | 4.2 g fiber per serving |
| Heart health | Good | Modest saturated fat and sodium per serving |
| Muscle gain | Good | Provides 18 g protein per serving |
Protein Bar and Blood Sugar
Glycemic index: 45. Glycemic load: 10 per serving.
Protein Bar has a glycemic index of about 45 and a glycemic load of around 10 per serving. Eating it with protein, fat or fiber slows the rise.
How Protein Bar Compares to Other Sweets and Treats
In the comparison table, protein bars are assessed against other sweets and treats to provide context regarding their nutritional value.
| Sweet (per 100 g) | Calories | Sugar (g) | Fat (g) | Protein (g) |
|---|---|---|---|---|
| Protein Bar | 350 | 18.0 | 11.0 | 30.0 |
| Oreo | 480 | 38.0 | 20.0 | 4.5 |
| Milk Chocolate | 535 | 51.5 | 29.7 | 7.6 |
| Dark Chocolate | 598 | 24.0 | 42.6 | 7.8 |
Protein Bar Myths, Checked
Protein bars are health food , Misleading. Many are candy bars with added protein, carrying as much sugar and as many calories as a chocolate bar.
A protein bar can replace a meal , Misleading. Some can, but check the calories and protein; many are snack-sized.
How to Track Protein Bar
Treats like protein bar are easy to under-log, because the serving on the label is often smaller than what people actually eat, so portion size is everything. Nutrola identifies food from a photo, barcode or voice entry and returns calories and macros, so you can log protein bar accurately instead of estimating. Nutrola is available from EUR 2.50 per month and shows no ads on any tier.
For related references, see calories in every candy and chocolate bar by brand, calories in popular desserts and bakery items, and every sugar and sweetener decoded.
Sources
Nutrition values are from the USDA FoodData Central database, shown per serving and per 100 g, rounded. Percent Daily Values use US reference intakes for a 2,000 calorie diet. Glycemic index and load are from published international tables and vary by variety, ripeness and cooking method. This is educational and not medical advice.
Frequently Asked Questions (FAQ)
How many calories are in a protein bar?
A protein bar contains approximately 210 calories per 1 bar (60 g). This makes it a relatively moderate-calorie snack option.
Is protein bar good for weight loss?
Protein bars can be beneficial for weight loss if they fit within your daily caloric needs. They provide protein and fiber, which can help increase satiety.
Can people with diabetes eat protein bar?
People with diabetes can consume protein bars, but it's important to monitor the carbohydrate content. The glycemic index of about 45 indicates a moderate blood sugar impact.
How much protein is in protein bar?
Each protein bar contains 18 g of protein, which can support muscle maintenance and repair, making it a suitable post-workout snack.
Is protein bar high in sugar?
Protein bars can contain added sugars; this particular bar has 10.8 g of sugar. It's advisable to check the label for total sugar content.
Are protein bars actually healthy?
Protein bars can be healthy options, especially those low in added sugars and high in protein and fiber. However, moderation is key.
Key Takeaways
- Protein bars provide 210 calories per 1 bar (60 g).
- Each bar contains 18 g of protein, supporting muscle health.
- With 4.2 g of fiber, they can aid digestion.
- The glycemic index is approximately 45, indicating moderate blood sugar impact.
- Protein bars contain 10.8 g of sugar, which varies by brand.
- They can be a convenient snack, but check for added sugars.
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