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Thin, irregular shards of glossy amber-gold candy are studded with pale tan whole and broken peanuts, with jagged edges and a hard, glassy surface.

Peanut brittle Calories

Sugar-based peanut brittle; crunchy, energy-dense sweet

CALORIES · 100 G

515kcal

GI

68high

POTASSIUM · 100 G

285mg

FIBER · 100 G

3.5g

Quick answer

1 piece (medium) of Peanut brittle (25 g) has 129 calories. That works out to 515 calories per 100 g. It contains 15.3 g of carbs, 2.8 g of protein, 6.3 g of fat and 0.9 g of fiber. Its 0.1 mg of Copper covers 11% of the Daily Value. Its glycemic index is 68 (high), so it raises blood sugar quickly.

Peanut brittle Nutrition Facts

Selected: 1 piece (medium) · 25 g

129

KCAL / 25G

Carbs

15.3g

· 6% DV

Protein

2.8g

· 6% DV

Fat

6.3g

· 8% DV

Fiber

0.9g

· 3% DV

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

Calories come from: Carbs 47% · Protein 9% · Fat 44%

Peanut brittle nutrition facts table · 1 piece (medium) (25 g)

NutrientAmount% DV
Calories129 kcal
Total fat6.3 g8%
Saturated fat1.2 g6%
Trans fat0.01 g
Sodium45 mg2%
Total carbohydrate15.3 g6%
Fiber0.9 g3%
Protein2.8 g6%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Peanut brittle?

ServingAmountCalories
1 piece (medium)25 g129 kcal
1 piece (small)12 g62 kcal
1 pack (mini)20 g103 kcal
1 serving (small)30 g155 kcal
1 piece (large)40 g206 kcal
2 piece (double)50 g258 kcal
1 serving (medium)60 g309 kcal
1 serving (large)90 g464 kcal
100 g100 g515 kcal

Calculated from 515 calories per 100 g.

Frequently Asked Questions About Peanut brittle

What is peanut brittle made of?

Peanut brittle is made by coating peanuts in cooked sugar syrup that cools into a hard, crisp sheet. Some recipes add baking soda to create a lighter, more porous texture, while others use only peanuts and caramelized sugar.

How do you make peanut brittle at home?

To make peanut brittle, stir roasted peanuts into sugar syrup cooked until caramel-colored, then spread the mixture thinly on a lined tray. Let it cool completely before breaking it into pieces; hot sugar can cause severe burns.

Why is my peanut brittle chewy instead of crunchy?

Peanut brittle is usually chewy because the sugar syrup was not cooked enough or the candy absorbed moisture after cooling. Cook the syrup until properly caramelized, spread it thinly, and store the cooled brittle in an airtight container in a dry place.

How do you keep peanut brittle from getting sticky?

Keep peanut brittle in an airtight container in a cool, dry place, away from steam and humidity. Moisture makes the sugar coating sticky and soft; avoid refrigerating it, since condensation can also spoil its crisp texture.

Can you freeze peanut brittle?

Yes, you can freeze peanut brittle in an airtight, freezer-safe container. Keep it sealed while it comes back to room temperature so condensation does not make the sugar coating sticky.

Why add baking soda to peanut brittle?

Baking soda releases gas in the hot sugar mixture, creating tiny bubbles that make peanut brittle lighter and easier to bite. It is optional: omitting it gives a denser, harder candy.

Why did my peanut brittle not harden?

Peanut brittle may fail to harden if the sugar syrup was removed from the heat too early or the candy cooled in a humid place. Cook the syrup until it reaches a deep caramel color, spread it thinly, and let it cool somewhere dry.

How long does peanut brittle last?

Stored in a tightly sealed container in a cool, dry place, peanut brittle can stay crisp for several weeks. Discard it if it develops an unusual smell, taste, or visible mold, and keep it away from humid conditions.

Is peanut brittle the same as peanut toffee?

No, peanut brittle is generally thinner and more brittle than peanut toffee. Brittle recipes commonly use caramelized sugar, while toffee often includes butter and has a richer, denser texture; recipes vary.

Is peanut brittle bad for people with diabetes?

Peanut brittle contains a concentrated sugar coating and can raise blood glucose; the peanuts do not cancel that effect. People with diabetes should account for it in their individual meal plan and ask their healthcare professional if they need personalized guidance.

Peanut brittle Vitamins & Minerals

Vitamins

B3

1.2mg · 8% DV

B1

0.08mg · 7% DV

Biotin

2µg · 7% DV

Vitamin E

0.8mg · 5% DV

Minerals

Copper

0.1mg · 11% DV

Manganese

0.18mg · 8% DV

Phosphorus

51mg · 7% DV

Magnesium

24mg · 6% DV

Potassium ⭐

71mg · 2% DV

Sodium

45mg · 2% DV

Peanut brittle Glycemic Index

GLYCEMIC INDEX

68
High
0 Low5570100

GLYCEMIC LOAD

10.5
Medium

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

How to Burn Off Peanut brittle

To burn the 129 calories in 1 piece (medium) (25 g):

🚶

32min

Walking (5 km/h)

🏃

13min

Running (8 km/h)

🚴

18min

Cycling

🏊

15min

Swimming

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

What is Peanut brittle?

Peanut brittle is a hard, crisp confection made by coating roasted peanuts in cooked sugar syrup, then cooling the mixture until it sets and breaking it into pieces. It is a familiar homemade sweet as well as a popular treat from confectioners and shops.

The peanuts bring a toasted, savoury note to the intense sweetness, while the texture is glassy and crunchy. It is often enjoyed as a small snack or shared after a meal; in many places, it also appears around holidays and celebrations. Peanut brittle is sugar-rich and energy-dense, with some protein and fibre from the nuts. A small piece alongside fresh fruit or unsweetened tea makes for a less heavy treat.

How Nutritious Is Peanut brittle?

Nutrient density

Low

28/ 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

Low

34/ 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.

Is Peanut brittle 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 Peanut brittle Contain Allergens?

Contains these allergens:

Gluten free
Dairy free
Eggs free
Peanuts yes
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Peanut brittle Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

— Not suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Peanut brittle Fat Profile

SATURATED

1.2g

MONOUNSATURATED

2.9g

POLYUNSATURATED

1.98g

⚖️

Omega 6:3 ratio 195:1

Above the ideal 4:1 (195:1).

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Nutrition data compiled from USDA FoodData Central and scientific sources.