1 piece (medium) of Sugar-free protein bar (50 g) has 160 calories. That works out to 320 calories per 100 g. It contains 3.5 g of carbs, 16 g of protein, 6.5 g of fat and 6 g of fiber. Its 90 mg of Phosphorus covers 13% of the Daily Value. Its glycemic index is 25 (low), so it raises blood sugar slowly.

What is Sugar-free protein bar?

A sugar-free protein bar is a compact, ready-to-eat snack made to provide protein without added sugar. Recipes vary by brand; some bars include pieces of nuts or seeds, while others have a smoother texture. Its dense, chewy consistency makes it easy to carry for a quick bite between meals or while travelling.

The flavour is often cocoa-like or mildly sweet, and it can be eaten on its own, alongside fruit, or with coffee or tea. It is also a convenient option after a workout when you want a portable snack. Protein and fibre are prominent nutritional features; per 100 g, it provides 32 g of protein. Check the product label and serving size, since ingredients and sweetness can differ considerably between bars.

Sugar-free protein bar Nutrition Facts

Selected: 100 g

320

KCAL / 100G

Carbs

· 3% DV

Protein

32g

· 64% DV

Fat

13g

· 17% DV

Fiber

12g

· 43% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 10% · Protein 47% · Fat 43%

Sugar-free protein bar Vitamins & Minerals

Vitamins

B12

0.4µg · 17% DV

0.18mg · 14% DV

0.15mg · 13% DV

0.2mg · 12% DV

Minerals

Phosphorus

180mg · 26% DV

Iron

3mg · 17% DV

Calcium

120mg · 12% DV

Magnesium

45mg · 11% DV

How Nutritious Is Sugar-free protein bar?

Nutrient density

Medium

55/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

High

68/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Sugar-free protein bar Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Sugar-free protein bar

To burn the 320 calories in 100 g:

🚶

79min

Walking (5 km/h)

🏃

33min

Running (8 km/h)

🚴

44min

Cycling

🏊

37min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Sugar-free protein bar Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Sugar-free protein bar Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Sugar-free protein bar Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Sugar-free protein bar Fat Profile

SATURATED

4.2g

MONOUNSATURATED

4.9g

POLYUNSATURATED

2.1g

⚖️

Omega 6:3 ratio 7.3:1

Above the ideal 4:1 (7.3:1).

Compare Sugar-free protein bar

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Sugar-free protein bar vs Protein Bar30 kcal fewer per 100 g

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Foods Similar to Sugar-free protein bar

🧴

Hawthorn Vinegar

18 kcal

🌯

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210 kcal

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195 kcal

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350 kcal

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Frequently Asked Questions About Sugar-free protein bar

Are sugar-free protein bars good for you?

Sugar-free protein bars can be a convenient snack, but whether one is a good choice depends on its ingredients and what it replaces. Sugar-free does not mean free of sweeteners, and a bar is less varied than a meal made from whole foods.

What ingredients are in a sugar-free protein bar?

A sugar-free protein bar commonly contains protein from milk, soy, or peas, along with nuts or seeds and a sweetener. Recipes vary by brand, so the protein source, texture, and sweetener can differ from one bar to another.

Can a sugar-free protein bar help with weight loss?

A sugar-free protein bar does not cause weight loss on its own. It may help you stay satisfied when it replaces a less filling snack, but adding it on top of your usual meals and snacks can increase your overall intake.

How can a sugar-free protein bar taste sweet without sugar?

A sugar-free protein bar may use stevia, sucralose, or sugar alcohols to provide sweetness. These are not the same as sugar, but sugar alcohols can cause gas or bloating for some people, especially when they eat several servings.

When should you eat a sugar-free protein bar around a workout?

A sugar-free protein bar can be a convenient protein-containing snack after a workout. Its dense texture and fiber may feel uncomfortable just before exercise, so allow time to digest it or choose a lighter snack beforehand.

Can a sugar-free protein bar replace a meal?

A sugar-free protein bar is not a balanced meal replacement for regular use. It can provide protein but usually lacks the variety of foods found in a complete meal; pair it with fruit or yogurt if it is all you can manage.

Can a sugar-free protein bar cause bloating?

Yes, a sugar-free protein bar can cause bloating or gas in some people. Sugar alcohols, concentrated protein, and added fiber may contribute; try a smaller amount or a bar with different ingredients if you notice discomfort.

Can people with diabetes eat sugar-free protein bars?

A sugar-free protein bar is not automatically suitable for everyone with diabetes, because sweeteners and other carbohydrates can still affect blood glucose. If you monitor glucose or use medication, ask your doctor or dietitian before making it a regular snack.

How should you store an opened sugar-free protein bar?

Keep an opened sugar-free protein bar tightly wrapped in a cool, dry place. Heat can soften it or change its texture; follow any different storage instructions on the package and avoid leaving the bar exposed for long.

Can you make a sugar-free protein bar at home?

Yes, you can make a sugar-free protein bar at home with protein powder, nut butter, seeds, and a sugar-free sweetener. Press the mixture into a pan and chill it to set; homemade bars should be stored in the refrigerator.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026