Calories in Peanuts

Source: USDA FoodData Central · Raw · Data verified by CaloriesCalc

567
kcal
per 100g, raw
25.8
g
Protein
49.2
g
Fat
16.1
g
Carbs
8.5
g
Fiber
159
kcal per 1oz (28g)
567
kcal per 100g
102
kcal per tablespoon (18g)
💪Highest protein of any nut — 25.8g/100g
Niacin (B3) — 40% DV per oz
🍷Resveratrol — same antioxidant as red wine
💊Folate — 60% DV per 100g
🌿8.5g fiber per 100g
❤️Reduces heart disease risk

🥜 Calculate Calories for Any Peanuts Weight

Weight28g

Nutrition Facts

Per 100g peanuts

* % Daily Value based on a 2,000 kcal diet.


Quick summary: Peanuts contain 567 calories per 100g — 159 kcal per oz with 7.3g protein. Highest protein of any nut (25.8g/100g). Provide 40% of daily niacin per oz. Rich in resveratrol — the same antioxidant in red wine — and folate (60% DV/100g).

Vitamins & Minerals — per 100g

NutrientAmount% Daily ValueBar
Manganese1.93mg84%
Niacin (B3)12.1mg76%
Folate240µg60%
Vitamin E8.33mg56%
Thiamine (B1)0.64mg53%
Magnesium168mg40%
Phosphorus376mg30%
Zinc3.27mg30%
Iron4.58mg25%
Potassium705mg15%

Calories in Peanuts by Weight

WeightCaloriesFatProteinNet Carbs
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Macronutrient Breakdown — per 100g

Fat49.2g · 78% of calories
Protein25.8g · 18% of calories
Carbs16.1g · 5% of calories
Fiber8.5g (in carbs)

Net carbs: 7.6g/100g. Highest protein nut (25.8g/100g). Technically a legume. Good source of resveratrol. Roasting increases antioxidant content.

Micronutrient Highlights

Niacin (B3)
12.1mg
76% DV
Highest of any nut — energy, DNA repair
💪
Protein
25.8g
52% DV
Highest protein nut
💊
Folate (B9)
240µg
60% DV
Cell division — among richest plant sources
Magnesium
168mg
40% DV
Muscle, nerve, ATP
🍷
Resveratrol
~73µg
Polyphenol
Same as red wine — anti-inflammatory
🔬
Manganese
1.93mg
84% DV
Antioxidant enzymes

Peanut Health Benefits

Highest Protein Nut

At 25.8g protein per 100g, peanuts have the highest protein of any commonly eaten nut. Rich in lysine — the amino acid limiting in grains — making peanut-grain combinations (peanut butter on bread) a nutritionally complete protein.

Niacin — 76% Daily Value

12.1mg niacin per 100g — highest of any nut or seed. Essential for 400+ NAD-dependent reactions including energy production and DNA repair. Adequate niacin is associated with reduced cardiovascular disease risk and neuroprotection.

Resveratrol — The Red Wine Antioxidant

~73µg resveratrol per 100g — the same polyphenol in red wine. Roasting actually increases resveratrol content. Associated with may support cardiovascular health, Antioxidant support effects, and SIRT1 longevity pathway activation.

Folate — Critical for Pregnancy

240µg folate per 100g (60% DV) — one of the richest plant sources. Essential for DNA synthesis, cell division, and prevention of neural tube defects. Peanuts and peanut butter are among the most practical and affordable folate-rich foods.

Peanuts vs Other Nuts — Comparison

🥜
Almonds
579 kcal/100g
+12 kcal
🥜
Walnuts
654 kcal/100g
+87 kcal
🥜
Cashews
553 kcal/100g
−14 kcal
🥜
Pistachios
562 kcal/100g
−5 kcal
🥜
Peanut Butter
588 kcal/100g
+21 kcal
🌻
Sunflower Seeds
584 kcal/100g
+17 kcal
🫚
Chia Seeds
486 kcal/100g
−81 kcal
🎃
Pumpkin Seeds
559 kcal/100g
−8 kcal

Is Peanuts Suitable for Your Diet?

Weight loss
In moderation — satiating high protein
Keto
Yes — 7.6g net carbs/100g
⚠️
Paleo
Debated — legume
Gluten-free
Yes
Diabetic
Yes — low GI
Vegan
Yes
Vegetarian
Yes
Heart health
Reduces cardiovascular risk

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Frequently Asked Questions

How many calories in peanuts?
Peanuts have 567 calories per 100g. One oz (28g): 159 kcal and 7.3g protein.
Are peanuts a nut or legume?
Botanically, peanuts are legumes (grow underground). Nutritionally they closely resemble tree nuts in fat, protein, and micronutrients.
Are peanuts high in protein?
Yes — 25.8g/100g is the highest of any commonly eaten nut. One oz provides 7.3g protein.
Are peanuts healthy?
Yes — rich in niacin, folate, magnesium, and resveratrol. Large studies consistently show nut consumption is associated with reduced cardiovascular disease risk.
Are peanuts keto?
Yes — 7.6g net carbs per 100g. One of the most popular keto snacks.
Peanuts vs almonds?
Peanuts: more protein, niacin, folate. Almonds: more vitamin E, magnesium, calcium, fiber. Both are highly nutritious.

More Nuts & Seeds

🥜
Flax Seeds
534 kcal/100g
View all 135 foods →

Sources

Nutrition values from USDA FoodData Central. Not medical advice.