The aicorn, or aik nit, is the nit o the aiks an thair close relatives (genera Quercus an Lithocarpus, in the faimily Fagaceae). It uisually conteens a single seed (occasionally twa seeds), enclosed in a teuch, leathery shell, an borne in a cup-shaped cupule. Aicorns are 1–6 cm lang an 0.8–4 cm broad. Acorns tak atween 6 an 24 month (dependin on the species) tae matur.

Aicorns frae smaw tae lairge o the Willae Aik, Quercus phellos (very smaw, at center); the Soothren Reid Aik, Quercus falcata; the White Aik, Quercus alba; an the Scarlet Aik, Quercus coccinea; frae soothren Greenville Coonty, SC, USA. Scale bar at upper richt is 1 cm.
Aicorn, raw
Nutreetional value per 100 g (3.5 oz)
Energy1,619 kJ (387 kcal)
40.75 g
23.85 g
Saturatit3.102 g
Monounsaturatit15.109 g
Polyunsaturatit4.596 g
6.15 g
Tryptophan0.074 g
Threonine0.236 g
Isoleucine0.285 g
Leucine0.489 g
Lysine0.384 g
Methionine0.103 g
Cystine0.109 g
Phenylalanine0.269 g
Tyrosine0.187 g
Valine0.345 g
Arginine0.473 g
Histidine0.170 g
Alanine0.350 g
Aspartic acid0.635 g
Glutamic acid0.986 g
Glycine0.285 g
Proline0.246 g
Serine0.261 g
Vitamins
Vitamin A equiv.
(0%)
2 μg
Thiamine (B1)
(10%)
0.112 mg
Riboflavin (B2)
(10%)
0.118 mg
Niacin (B3)
(12%)
1.827 mg
Pantothenic acid (B5)
(14%)
0.715 mg
Vitamin B6
(41%)
0.528 mg
Folate (B9)
(22%)
87 μg
Vitamin B12
(0%)
0.00 μg
Vitamin C
(0%)
0.0 mg
Meenerals
Calcium
(4%)
41 mg
Airn
(6%)
0.79 mg
Magnesium
(17%)
62 mg
Manganese
(64%)
1.337 mg
Phosphorus
(11%)
79 mg
Potassium
(11%)
539 mg
Sodium
(0%)
0 mg
Zinc
(5%)
0.51 mg
Ither constituents
Watter27.9 g

Percentages are approximated uisin US recommendations for adults.
Source: USDA Nutrient Database