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Oak acorn Calories
Fiber-rich, energy-dense wild nut-like seed with notable manganese and copper.
In season: Autumn
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 ounce (medium) of Oak acorn (28 g) has 108 calories. That works out to 387 calories per 100 g. It contains 11.4 g of carbs, 1.7 g of protein, 6.7 g of fat and 2.3 g of fiber. Its 0.2 mg of Copper covers 26% of the Daily Value. Its glycemic index is 25 (low), so it raises blood sugar slowly.
Oak acorn Nutrition Facts
Selected: 1 ounce (medium) · 28 g
108
KCAL / 28G
Carbs
11.4g
· 4% DV
Protein
1.7g
· 3% DV
Fat
6.7g
· 9% DV
Fiber
2.3g
· 8% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 40% · Protein 6% · Fat 54%
Oak acorn nutrition facts table · 1 ounce (medium) (28 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 108 kcal | |
| Total fat | 6.7 g | 9% |
| Saturated fat | 0.81 g | 4% |
| Trans fat | 0 g | |
| Sodium | 0.14 mg | 0% |
| Total carbohydrate | 11.4 g | 4% |
| Fiber | 2.3 g | 8% |
| Protein | 1.7 g | 3% |
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 oz of Oak acorn?
| Serving | Amount | Calories |
|---|---|---|
| 1 ounce (medium) | 28 g | 108 kcal |
| 1 piece (small) | 5 g | 19 kcal |
| 0.25 cup (chopped) | 30 g | 116 kcal |
| 1 serving (small) | 40 g | 155 kcal |
| 10 piece (medium) | 50 g | 194 kcal |
| ½ cup (chopped) | 60 g | 232 kcal |
| 1 serving (large) | 75 g | 290 kcal |
| 100 g | 100 g | 387 kcal |
| 20 piece (large) | 100 g | 387 kcal |
| 1 cup (chopped) | 120 g | 464 kcal |
Calculated from 387 calories per 100 g.
Frequently Asked Questions About Oak acorn
Can you eat oak acorns?
Yes, people can eat oak acorns, but they need preparation first. Acorns contain bitter tannins, so remove much of the tannin by soaking or boiling them before roasting, grinding, or cooking.
Are oak acorns safe to eat raw?
No, raw oak acorns are generally too high in bitter tannins to eat comfortably. Large amounts may upset your stomach, so process them to reduce tannins rather than snacking on them straight from the tree.
How do you remove tannins from oak acorns?
Shell the oak acorns, then soak the kernels in water, changing the water as it darkens. Continue until the bitterness has substantially faded; you can also boil them, replacing the water repeatedly, before drying or cooking.
What do oak acorns taste like?
Properly prepared oak acorns taste mildly nutty and starchy, with a flavor that varies by oak species. Acorns that have not been leached are noticeably bitter and astringent because of their tannins.
How do you make flour from oak acorns?
To make oak acorn flour, shell the acorns, leach out much of their tannin, and dry the kernels thoroughly. Grind them into flour and store it in an airtight container; unprocessed acorns can make the flour unpleasantly bitter.
Can you make coffee from oak acorns?
Yes, you can make a coffee-style drink from oak acorns. Leach and dry the kernels first, then roast and grind them; steep the grounds in hot water for a roasted, nutty drink that tastes different from coffee.
How can you tell when oak acorns are ripe?
Ripe oak acorns are usually brown and fall from the tree in autumn. Choose intact, firm ones without holes or mold, and identify the oak species before eating them because acorns vary between species.
How should you store oak acorns?
Fresh oak acorns can mold if stored damp, so sort and dry them before long-term storage. Keep dried acorns in an airtight container in a cool, dry place, and discard any that develop mold or an off smell.
Can you freeze oak acorns?
Yes, you can freeze oak acorns, preferably after shelling, leaching, and drying the kernels. Seal them in a freezer-safe container to prevent moisture and odors from getting in, and discard them if they smell off after thawing.
Are oak acorns poisonous to dogs?
Oak acorns can be harmful to dogs. Their tannins may cause stomach upset, and swallowed acorns can also pose a choking or blockage risk; keep them out of reach and contact a veterinarian if your dog eats some and becomes unwell.
Oak acorn Vitamins & Minerals
Vitamins
B6
0.2mg · 12% DV
Folate
24.36µg · 6% DV
B5
0.26mg · 5% DV
Biotin
1.12µg · 4% DV
Minerals
Copper
0.23mg · 26% DV
Manganese
0.38mg · 17% DV
Potassium ⭐
151mg · 4% DV
Magnesium
17mg · 4% DV
Sodium
0.14mg · 0% DV
Oak acorn Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Oak acorn
To burn the 108 calories in 1 ounce (medium) (28 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Oak acorn?
Oak acorn is the nut-like seed produced by oak trees. It is not usually an everyday food, but acorns have been eaten in various traditional cuisines, often roasted or ground into flour. Their naturally bitter, tannic taste means they need careful preparation: the shells are removed and the kernels soaked or boiled to reduce the bitterness before eating.
Once roasted, they have a mild, chestnut-like flavour and a firm, dense texture; acorn flour can go into breads and other baked goods. Oak acorn is energy-dense and provides fibre, with 8.1 g per 100 g. If you are trying it in baking, blending the flour with another grain flour can make its strong flavour and texture easier to work with.
How Nutritious Is Oak acorn?
Nutrient density
Medium
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
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 Oak acorn Processed?
NOVA 2
Minimally 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 Oak acorn Contain Allergens?
Contains these allergens:
Which Diets Is Oak acorn Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Oak acorn Fat Profile
SATURATED
0.81g
MONOUNSATURATED
4.37g
POLYUNSATURATED
1.26g
Omega 6:3 ratio 40.7:1
Above the ideal 4:1 (40.7:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.