ONE Bar: Calories, Nutrition Facts, and Health Benefits (2026)

ONE Bar contains 220 calories, 20 g of protein, and only 1 g of sugar per 60 g serving. With 9 g of fiber and a glycemic index of about 30, it is designed to support various dietary goals.

This page provides detailed nutrition information for ONE Bar, including its calorie count, macronutrient breakdown, and health benefits. Additionally, it explores how this bar fits into common dietary goals and its impact on blood sugar levels.

ONE Bar Nutrition Facts (Per Serving and Per 100 g)

The following nutrition facts table outlines the specific nutrient content of ONE Bar per serving and per 100 g.

Values are for 1 bar (60 g).

Nutrient	Per Serving	Per 100 g	% Daily Value (per serving)
Calories	220	367	11%
Protein	20.0 g	33.3 g	40%
Carbohydrates	24.0 g	40.0 g	9%
Fiber	9.0 g	15.0 g	32%
Sugar	1.0 g	1.7 g	-
Fat	7.0 g	11.7 g	9%
Vitamin C	0.0 mg	0.0 mg	0%
Potassium	120 mg	200 mg	3%
Saturated Fat	3.0 g	5.0 g	15%
Sodium	200 mg	333 mg	9%

About 40% of one bar calories come from carbohydrates, 33% from protein and 26% from fat.

ONE Bar by Health Goal

The by-goal ratings section evaluates how ONE Bar aligns with various health and fitness objectives.

Goal	Rating	Why
Weight loss	Fair	220 calories per serving, with 9 g fiber for fullness
Blood sugar / diabetes	Good	Glycemic load of about 5 per serving
Immunity	Fair	Not a significant source of immune-supporting nutrients
Digestion	Excellent	9 g fiber per serving
Heart health	Good	Modest saturated fat and sodium per serving
Muscle gain	Excellent	High in protein at 20 g per serving

ONE Bar and Blood Sugar

Glycemic index: 30. Glycemic load: 5 per serving.

ONE Bar has a glycemic index of about 30 and a glycemic load of around 5 per serving. Eating it with protein, fat or fiber slows the rise.

How ONE Bar Compares to Other Sweets and Treats

In the comparison table, ONE Bar is assessed alongside other sweets and treats to highlight its nutritional advantages.

Sweet (per 100 g)	Calories	Sugar (g)	Fat (g)	Protein (g)
ONE Bar	367	1.7	11.7	33.3
Pure Protein Bar	360	6.0	10.0	40.0
Quest Bar	333	1.7	13.3	35.0
Built Bar	265	10.2	8.2	34.7

ONE Bar Myths, Checked

1 g of sugar means no sweeteners , Misleading. ONE bars keep sugar low using sugar alcohols and added fiber.

High-fiber bars cause no digestive issues , Misleading. The added fiber can cause bloating for some people.

How to Track ONE Bar

Treats like one 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 one 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 ONE Bar?

A ONE Bar contains 220 calories per serving. This makes it a moderate-calorie snack option, suitable for those looking to manage their caloric intake.

Is one bar good for weight loss?

ONE Bar can be beneficial for weight loss due to its high protein content of 20 g and low sugar level of 1 g. These factors can help promote satiety and reduce overall calorie consumption.

Can people with diabetes eat one bar?

People with diabetes can enjoy ONE Bar, as it has a low glycemic index of about 30. This means it is less likely to cause significant spikes in blood sugar levels.

How much protein is in one bar?

Each ONE Bar provides 20 g of protein, making it an excellent choice for those looking to increase their protein intake, especially post-workout.

Is one bar high in sugar?

ONE Bar is low in sugar, containing only 1 g per serving. This makes it a preferable option for those monitoring their sugar consumption.

Are ONE bars actually low sugar?

Yes, ONE Bars are considered low sugar, with just 1 g of sugar per serving. This aligns with dietary recommendations for reducing sugar intake.

Key Takeaways

• ONE Bar has 220 calories per 60 g serving.
• It contains 20 g of protein, supporting muscle maintenance.
• With only 1 g of sugar, it is low in sweetness.
• The bar provides 9 g of fiber, aiding digestion.
• Its glycemic index is about 30, indicating a low blood sugar impact.
• ONE Bar is a suitable snack for various dietary goals.