The almond (Prunus dulcis, syn. Prunus amygdalus, or Amygdalus communis) is a small deciduous tree belonging to the subfamily Prunoideae of the family Rosaceae; an almond is also the fruit of this tree. The plant is classified with the peach in the subgenus Amygdalus within Prunus, distinguished from the other subgenera by the corrugated seed shell.

The sweet fleshy outer covering of other

members of Prunus, such as the plum and cherry, is replaced by a leathery coat called the hull, which contains inside a hard shell the edible kernel, commonly called a nut. In botanical parlance, the reticulated hard stony shell is called an endocarp, and the fruit, or exocarp, is a drupe, having a downy outer coat.

The tree is a native of southwest Asia. The domesticated form can ripen fruit as far north as the British Isles. It is a small tree, growing to 4-9 m tall. The leaves are lanceolate, 6-12 cm long, and serrated at the edges. The flowers are white or pale pink, 3-5 cm diameter with five petals, produced before the leaves in early spring.

Origin and history
The wild form of domesticated almond grows in the Mediterranean region in parts of the Levant. Almonds must first have been taken into cultivation in this region. Before cultivation and domestication occurred, wild almonds were harvested as food and doubtless were processed by leaching or roasting to remove their toxicity. Domesticated almonds appear in the Early Bronze Age (3000–2000 BC) of the Near East, or possibly a little earlier. A well-known archaeological example of almond is the fruits found in Tutankhamun's tomb in Egypt (c. 1325 BC), probably imported from the Levant.

Production
Global production of almonds is around 1.5 million tonnes, with a low of 1 million tonnes in 1995 and a peak of 1.85 million tonnes in 2002 according to Food and Agriculture Organization (FAO) figures. Major producers include Greece, Iran, Italy, Morocco, Portugal, Spain, Syria, Turkey, and the world's largest producer, the United States. In Spain, numerous commercial cultivars of sweet almond are produced, most notably the Jordan almond (imported from Málaga) and the Valencia almond. In the United States, production is concentrated in California, with almonds being California's sixth leading agricultural product and its top agricultural export. California exported almonds valued at 1.08 billion dollars in 2003, about 70% of total California almond crop.

Culinary uses

practically no carbohydrates and may therefore be made into flour for cakes and biscuits for low carbohydrate diets or for patients suffering from diabetes mellitus or any other form of glycosuria. A standard serving of almond flour, 1 cup, contains 20 grammes of carbohydrates, of which 10 g is dietary fibre, for a net of 10 g of carbohydrate per cup. This makes almond flour very desirable for use in cake and bread recipes by people on carbohydrate-restricted diets.

Almonds can be processed into a milk substitute simply called almond milk; the nut's soft texture, mild flavour, and light colouring (when skinned) make for an efficient analog to dairy, and a soy-free choice, for lactose intolerant persons, vegans, and so on. Raw, blanched, and lightly toasted almonds all work well for different production techniques, some of which are very similar to that of soymilk and some of which actually use no heat, resulting in "raw milk" (see raw foodism).

Sweet almonds are used in marzipan, nougat, and macaroons, as well as other desserts. Almonds are a rich source of Vitamin E, containing 24 mg per 100 g.[2] They are also rich in monounsaturated fat, one of the two "good" fats responsible for lowering LDL cholesterol.

The Marcona variety of almond, which is shorter, rounder, sweeter, and more delicate in texture than other varieties, originated in Spain and is becoming popular in North America and other parts of the world.[3] Marcona almonds are traditionally served after being lightly fried in oil, and are also used by Spanish chefs to prepare a dessert called turrón.

In China, almonds are used in a popular dessert when they are mixed with milk and then served hot. In Indian cuisine, almonds are the base ingredient for pasanda-style curries.

Possible health benefits
Edgar Cayce, a man regarded as the father of American holistic medicine, also highly favored the almond. In his readings, Cayce often recommended that almonds be included in the diet. Claimed health benefits include improved complexion, improved movement of food through the colon and the prevention of cancer.[citation needed] Recent research associates inclusion of almonds in the diet with elevating the blood levels of HDLs (high-density lipoproteins) and of lowering the levels of LDLs (low-density lipoproteins). [4][5]

Etymology
The word 'almond' comes from Old French almande or alemande, late Latin amandola, derived through a form amingdola from the Greek amugdale (cf Amygdala), an almond. The al- for a- may be due to a confusion with the Arabic article al, the word having first dropped the a- as in the Italian form mandorla; the British pronunciation ar-mond and the modern Catalan ametlla and modern French amande show the true form of the word.