Hazel nuts
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| Nutritional value per 100 g | |
|---|---|
| Energy | 2,629 kJ (628 kcal) |
|
16.70 g
|
|
| Sugars | 4.34 g |
| Dietary fiber | 9.7 g |
|
60.75 g
|
|
|
14.95 g
|
|
| Vitamins |
Quantity
%DV†
|
| Vitamin A equiv. |
0%
1 μg
0%
11 μg92 μg
|
| Thiamine (B1) |
56%
0.643 mg |
| Riboflavin (B2) |
9%
0.113 mg |
| Niacin (B3) |
12%
1.8 mg |
| Pantothenic acid (B5) |
18%
0.918 mg |
| Vitamin B6 |
43%
0.563 mg |
| Folate (B9) |
28%
113 μg |
| Vitamin C |
8%
6.3 mg |
| Vitamin E |
100%
15.03 mg |
| Vitamin K |
14%
14.2 μg |
| Minerals |
Quantity
%DV†
|
| Calcium |
11%
114 mg |
| Iron |
36%
4.7 mg |
| Magnesium |
46%
163 mg |
| Manganese |
294%
6.175 mg |
| Phosphorus |
41%
290 mg |
| Potassium |
14%
680 mg |
| Selenium |
3%
2.4 μg |
| Sodium |
0%
0 mg |
| Zinc |
26%
2.45 mg |
| Other constituents | Quantity |
| Water | 5.31 g |
|
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†Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database |
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The hazelnut is the nut of the hazel and therefore includes any of the nuts deriving from species of the genus Corylus, especially the nuts of the species Corylus avellana. It also is known as cobnut or filbert nut according to species. A cob is roughly spherical to oval, about 15–25 mm (0.59–0.98 in) long and 10–15 mm (0.39–0.59 in) in diameter, with an outer fibrous husk surrounding a smooth shell. A filbert is more elongated, being about twice as long as its diameter. The nut falls out of the husk when ripe, about 7 to 8 months after pollination. The kernel of the seed is edible and used raw or roasted, or ground into a paste. The seed has a thin, dark brown skin, which sometimes is removed before cooking.
Hazelnuts are used in confectionery to make praline, and also used in combination with chocolate for chocolate truffles and products such as Nutella and Frangelico liqueur. Hazelnut oil, pressed from hazelnuts, is strongly flavoured and used as a cooking oil. Turkey is the world's largest producer of hazelnuts.
Hazelnuts are rich in protein, monounsaturated fat, vitamin E, manganese, and numerous other essential nutrients (nutrition table below).
In 1995, evidence of large-scale Mesolithic nut processing, some 9,000 years old, was found in a midden pit on the island of Colonsay in Scotland. The evidence consists of a large, shallow pit full of the remains of hundreds of thousands of burned hazelnut shells. Hazelnuts have been found on other Mesolithic sites, but rarely in such quantities or concentrated in one pit. The nuts were radiocarbon dated to 7720+/-110BP, which calibrates to circa 6000 BC. Similar sites in Britain are known only at Farnham in Surrey and Cass ny Hawin on the Isle of Man.
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Wikipedia