1 piece (medium) of Dark Chocolate Oat Bar (40 g) has 164 calories. That works out to 410 calories per 100 g. It contains 22.4 g of carbs, 2.9 g of protein, 6.2 g of fat and 3.1 g of fiber. Its 0.4 mg of Manganese covers 19% of the Daily Value. Its glycemic index is 45 (medium), so it raises blood sugar at a moderate pace.

What is Dark Chocolate Oat Bar?

A Dark Chocolate Oat Bar is a convenient snack made with oats and dark chocolate, pressed into a portable bar. Its texture is typically chewy and slightly crumbly, with oat pieces adding a wholesome bite and the chocolate bringing a rich, less-sweet flavour.

It works as a quick snack between meals, an easy addition to a packed lunch, or something to have with coffee or tea. Oats make it a source of fibre (7.8 g per 100 g), while the bar is also energy-dense. Pair it with fresh fruit or plain yoghurt for a more rounded snack, or share one if you want a smaller portion.

Dark Chocolate Oat Bar Nutrition Facts

Selected: 100 g

410

KCAL / 100G

Carbs

56g

· 20% DV

Protein

7.2g

· 14% DV

Fat

15.5g

· 20% DV

Fiber

7.8g

· 28% DV

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

Calories come from: Carbs 57% · Protein 7% · Fat 36%

Dark Chocolate Oat Bar Vitamins & Minerals

Vitamins

0.19mg · 16% DV

0.17mg · 13% DV

Vitamin E

1.2mg · 8% DV

1.1mg · 7% DV

Minerals

Manganese

1mg · 43% DV

Phosphorus

170mg · 24% DV

Magnesium

85mg · 20% DV

Iron

3mg · 17% DV

How Nutritious Is Dark Chocolate Oat Bar?

Nutrient density

Medium

35/ 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

Medium

41/ 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.

Dark Chocolate Oat Bar Glycemic Index

GLYCEMIC INDEX

Medium

0 Low5570100

GLYCEMIC LOAD

High

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

How to Burn Off Dark Chocolate Oat Bar

To burn the 410 calories in 100 g:

🚶

101min

Walking (5 km/h)

🏃

42min

Running (8 km/h)

🚴

56min

Cycling

🏊

48min

Swimming

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

Is Dark Chocolate Oat 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 Dark Chocolate Oat Bar Contain Allergens?

Contains these allergens:

Gluten yes

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Dark Chocolate Oat Bar Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

— Not suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Dark Chocolate Oat Bar Fat Profile

SATURATED

7.3g

MONOUNSATURATED

4.8g

POLYUNSATURATED

2.3g

⚖️

Omega 6:3 ratio 16.2:1

Above the ideal 4:1 (16.2:1).

Compare Dark Chocolate Oat Bar

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Foods Similar to Dark Chocolate Oat 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 Dark Chocolate Oat Bar

What is in a dark chocolate oat bar?

A dark chocolate oat bar is made primarily with oats and dark chocolate. Recipes may also use sweeteners, oils, or ingredients that bind the bar together, so the exact mix varies by product.

Is a dark chocolate oat bar good for you?

A dark chocolate oat bar can provide fibre and magnesium, but it is also an energy-dense, processed snack. Its oats do not automatically make it a balanced meal, so treat it as a convenient snack rather than a health food.

Can a dark chocolate oat bar help with weight loss?

No, a dark chocolate oat bar does not cause weight loss. It can fit into a planned snack, but adding it on top of your usual meals may make it harder to manage your overall intake.

Is a dark chocolate oat bar good before a workout?

Yes, a dark chocolate oat bar can be a convenient source of energy before exercise. Eat it with enough time to digest, since a bar containing oats and chocolate may feel heavy if you have it immediately before a hard workout.

Does a dark chocolate oat bar keep you full?

It may keep you satisfied for a while because oats provide fibre, but it may not be filling enough to replace a meal. Pairing it with a protein-rich food, such as yogurt, can make a snack more satisfying.

Can you eat a dark chocolate oat bar for breakfast?

Yes, a dark chocolate oat bar can work as a quick breakfast when you are short on time. On its own it is not a varied meal, so add something like fruit and milk or yogurt for a more balanced start.

Can people with diabetes eat a dark chocolate oat bar?

People with diabetes may be able to include a dark chocolate oat bar, but oats still contribute carbohydrates and products can differ in added sugar. Check the serving information and ask your clinician or dietitian if you need advice for your individual glucose plan.

How should you store a dark chocolate oat bar?

Keep a dark chocolate oat bar in a cool, dry place away from direct sunlight, and seal it after opening. An airtight container helps prevent it from drying out; warmth can soften or melt the chocolate.

How do you make a dark chocolate oat bar at home?

Mix oats with melted dark chocolate and a binder, such as nut butter or syrup, then press the mixture firmly into a lined tin. Chill until set and cut into bars; the binder you choose changes the texture and sweetness.

Does a dark chocolate oat bar contain caffeine?

It may contain a small amount of caffeine because dark chocolate comes from cacao, but the amount varies with the chocolate used and how much the bar contains. Oats themselves do not contain caffeine.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026