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Nut (fruit)

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Revision as of 18:48, 30 July 2007 by Gravitan (talk | contribs) (rv further)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) For other uses, see Nut (disambiguation).
Hazelnuts from the Common Hazel
Chestnut

A nut can be either a seed or a fruit.

Botanical definitions

A nut in botany is a simple dry fruit with one seed (rarely two) in which the ovary wall becomes very hard (stony or woody) at maturity, and where the seed remains unattached or unfused with the ovary wall. Most nuts come from pistils with inferior ovaries (see flower) and all are indehiscent (not opening at maturity). True nuts are produced, for example, by some plants — families of the order Fagales.

Order Fagales

Nuts BITCH

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Nuts BITCH

Fucker r u stuped i told u u cant block me BITCH

Nut allergy

Main article: Nut Allergy

Allergy to nuts is a relatively common and often very serious problem. For people with nut allergy, exposure to surprisingly small amounts of nut fragments (e.g. minor cross-contamination of otherwise nut-free products in a food processing factory) can cause fatal anaphylactic shock which has led to their banning on some school premises.

Allergy to peanuts is the most common; some evidence suggests that some peanut allergies may be related to the use of peanuts in baby foods; if given to very young children who are not yet able to digest all the components of peanuts fully, the body will then react against those components.

It has been reported that the processes that increase the flavour and shelf-life of peanuts, namely maturation, roasting and curing, increase their allergenic properties and that this may be applicable to other nut types also.

As the peanut is a member of the pea family unrelated to other nuts, individuals with allergies to peanuts may not be allergic to other nuts, and those with allergies to other nuts may not be allergic to peanuts. A common term applied to nuts, used to distinguish them from peanuts, is "tree nuts".

Nutritional benefits

A graph detailing the nutritional properties of nuts and oily seeds.

Several epidemiological studies have revealed that people who consume nuts regularly are less likely to suffer from coronary heart disease. Recent clinical trials have found that consumption of various nuts such as almonds and walnuts can lower serum LDL cholesterol concentrations. Although nuts contain various substances thought to possess cardioprotective effects, scientists believe that their fatty acid profile is at least in part responsible for the hypolipidemic response observed in clinical trials.

In addition to possessing cardioprotective effects, nuts generally have a very low glycemic index (GI). Consequently, dietitians frequently recommend nuts be included in diets prescribed for patients with insulin resistance problems such as diabetes mellitus type 2.

One study found that people who eat nuts live two to three years longer than those who do not. However, this may be because people who eat nuts tend to eat less junk food.

Other uses

The "nut" of the horse-chestnut (Aesculus hippocastanum), is also known as a conker. Conkers are inedible, due to the presence of the toxic glucoside aesculin, but are collected and used in an old children's game, also known as conkers, in which a nut is threaded onto a strong cord and then each child attempts to break their opponent's conker by hitting it with their own. A related species, Aesculus californica, was formerly eaten by the Native Americans of California in times of famine. It must be leached to remove the toxic constituents before eating.

References

  1. Nut Grower's Guide: The Complete Handbook for Producers and Hobbyists by Jennifer Wilkinson, Landlinks Press, 2005. quoting Soutter, V. (2004). "Allergic reactions to nuts". Australian Nutgrower 18(3), 38.
  2. "ABC News: The Places Where People Live Longest". URL accessed January 18, 2007.

Kellogg, John H. "Nuts May Save the Race." The Itinerary of Breakfast. New York: Funk & Wagnalls Company, 1920. 165–203.

External links

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