Vegetables: Wikis


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Farmers' market showing vegetables for sale in Lhasa, Tibet
Fruit and vegetable output in 2004

The noun vegetable usually means an edible plant or part of a plant other than a sweet fruit or seed.

However, the word is not scientific, and its meaning is largely based on culinary and cultural tradition. Therefore, the application of the word is somewhat arbitrary and subjective. For example, some people consider mushrooms to be vegetables,[1][2][3] while others consider them a separate food category.[4]

Some vegetables can be consumed raw, and some may (or must) be cooked in various ways, most often in non-sweet (savory or salty) dishes. However, a few vegetables are often used in desserts and other sweet dishes, such as rhubarb pies and carrot cakes.

As an adjective, the word vegetable is used in scientific and technical contexts with a different and much broader meaning, namely of "related to plants" in general, edible or not — as in vegetable matter, vegetable kingdom, vegetable origin, etc.[5] The meaning of "vegetable" as "plant grown for food" was not established until the 18th century.[6]


Fruit or vegetable?

An Euler diagram showing the overlaps between the three categories: "fruits" and "vegetables" in the informal (culinary) sense, and "fruits" in the botanical sense.

There are three definitions relating to fruits and vegetables:

  • Fruit (scientific): the ovary of a seed-bearing plant,
  • Fruit (culinary): any edible part of a plant with a sweet flavor,
  • Vegetable: any edible part of a plant with a savory flavor.

In everyday, grocery-store, culinary language, the words "fruit" and "vegetable" are mutually exclusive; plant products that are called fruits are hardly ever classified as vegetables, and vice versa. For scientists, the word "fruit" has a precise botanical meaning (a part that developed from the ovary of a flowering plant), which is considerably different from its common meaning, and includes many poisonous fruits. While peaches, plums, and oranges are "fruits" in both senses, many items commonly called "vegetables" — such as eggplants, bell peppers, and tomatoes — are technically fruits, as are most cereals, as well as some spices like black pepper and chillies. Some plant products, such as corn or peas, may be considered vegetables only while still unripe.

The question of whether the tomato is a fruit or a vegetable found its way into the United States Supreme Court in 1893. The court ruled unanimously in Nix v. Hedden that a tomato is correctly identified as, and thus taxed as, a vegetable, for the purposes of the 1883 Tariff Act on imported produce. The court did acknowledge, however, that, botanically speaking, a tomato is a fruit.[7]

Languages other than English often have categories that can be identified with the common English meanings of "fruit" and "vegetable", but their precise meaning often depends on local culinary traditions. For example, in Brazil the avocado is traditionally consumed with sugar as a dessert or in milk shakes, and hence regarded as a fruit; whereas in other countries (including Mexico and the United States) it is used in salads and dips, and hence considered a vegetable.[citation needed]

Examples of different parts of plants used as vegetables

The list of food items called "vegetable" is quite long, and includes many different parts of plants:

A Celery leaf.
A tomato.


Vegetables in market.

"Vegetable" comes from the Latin vegetabilis (animated) and from vegetare (enliven), which is derived from vegetus (active), in reference to the process of a plant growing. This in turn derives from the Proto-Indo-European base *weg- or *wog-, which is also the source of the English wake, meaning "become (or stay) alert".[citation needed]

The word "vegetable" was first recorded in English in the 15th century,[8] but applied to any plant. This is still the sense of the adjective "vegetable" in science.[5] The related term vegetation also has a similarly broad scope.


South Asian style stir fry ipomoea aquatica in chili and sambal
Indian Vegetable Salad containing Lemon, Tomato, Radish, Beetroot, Cucumber and Green Chillies
Vegetables (and some fruit) for sale on a street in Guntur, India

Vegetables are eaten in different variety of ways, as part of main meals and as snacks. The nutritional content of vegetables varies considerably, though generally they contain little protein or fat,[9][10] and varying proportions of vitamins, provitamins, dietary minerals, fiber and carbohydrates. Vegetables contain a great variety of other phytochemicals, some of which have been claimed to have antioxidant, antibacterial, antifungal, antiviral and anticarcinogenic properties.[11][12]

However, vegetables often also contain toxins and antinutrients such as α-solanine, α-chaconine[13], enzyme inhibitors (of cholinesterase, protease, amylase, etc.), cyanide and cyanide precursors, oxalic acid, and more.[14] Depending on the concentration, such compounds may reduce the edibility, nutritional value, and health benefits of dietary vegetables. Cooking and/or other processing may be necessary to eliminate or reduce them.

Eating diets containing sufficient amounts of fruits and vegetables can help lower your risk of cardiovascular diseases and type 2 diabetes. Doing this may also protect against some cancers and decrease bone loss. Also, getting potassium (plentiful in both fruits and vegetables) will help prevent the forming of kidney stones.[15]

Color pigments

The green color of leafy vegetables is due to the presence of the green pigment chlorophyll. Chlorophyll is affected by pH and changes to olive green in acid conditions, and bright green in alkaline conditions. Some of the acids are released in steam during cooking, particularly if cooked without a cover.

The yellow/orange colors of fruits and vegetables are due to the presence of carotenoids, which are also affected by normal cooking processes or changes in pH.

The red/blue coloring of some fruits and vegetables (e.g. blackberries and red cabbage) are due to anthocyanins, which are sensitive to changes in pH. When pH is neutral, the pigments are purple, when acidic, red, and when alkaline, blue. These pigments are very water soluble.


Pulse seeds.

For food safety, the CDC recommends proper fruit handling and preparation to reduce the risk of food contamination and foodborne illness. Fresh fruits and vegetables should be carefully selected. At the store, they should not be damaged or bruised and pre-cut pieces should be refrigerated or surrounded by ice. All fruits and vegetables should be rinsed before eating. This recommendation also applies to produce with rinds or skins that are not eaten. It should be done just before preparing or eating to avoid premature spoilage. Fruits and vegetables should be kept separate from raw foods like meat, poultry, and seafood, as well as any cooking utensils or surfaces that may have come into contact with them (e.g. cutting boards). Fruits and vegetables, if they are not going to be cooked, should be thrown away if they have touched raw meat, poultry, seafood or eggs. All cut, peeled, or cooked fruits and vegetables should be refrigerated within 2 hours. After a certain time, harmful bacteria may grow on them and increase the risk of foodborne illness.[16]


Proper post harvest storage aimed at extending and ensuring shelf life is best effected by efficient cold chain application. All vegetables benefit from proper post harvest care[17]

Many root and non-root vegetables that grow underground can be stored through winter in a root cellar or other similarly cool, dark and dry place to prevent mold, greening and sprouting. Care should be taken in understanding the properties and vulnerabilities of the particular roots to be stored. These vegetables can last through to early spring and be nearly as nutritious as when fresh.

During storage, leafy vegetables lose moisture, and the vitamin C in them degrades rapidly. They should be stored for as short a time as possible in a cool place, in a container or plastic bag.


There are a series of ISO standards regarding fruits and vegetables.[18]

See also


  1. ^ "Mushrooms" classified under "Other vegetables". In Inside the Pyramid: What foods are in the vegetable group? United States Department of Agriculture. Last modified on 2009-04-15 04:56 PM, accessed on 2009-06-24.
  2. ^ "When stuffing round vegetables such as cherry tomatoes and mushroom caps, first cut a small slice off the bottom..." In Cooking Tips: Stuffing Vegetable Hors D'oeuvres at Joy of Cooking site. Bellisio Foods, Inc. (2009). Accessed on 2010-01-15.
  3. ^ "Mushrooms" classified under "VEGETABLES". In Suggestions - Vegetables at Accessed on 2009-06-24].
  4. ^ Alternative Crops and Plants: Vegetables and Mushrooms. United States Department of Agriculture. Last modified on 2009-06-08, accessed on 2009-06-24.
  5. ^ a b Swedenborg, Emanuel (2003). Swedenborg Concordance 1888. Kessinger Publishing. p. 502. ISBN 0-7661-3728-7.
  6. ^ Ayto, John (1993). Dictionary of Word Origins. New York: Arcade Publishing. ISBN 1-55970-214-1. OCLC 33022699. 
  7. ^ Full text of the opinion in Nix v. Hedden courtesy of
  8. ^ Online Etymology Dictionary. Accessed 2009-11-25
  9. ^ Woodruff, Sandra L. (1995). Secrets of Fat-Free Cooking : Over 150 Fat-Free and Low-Fat Recipes from Breakfast to Dinner-Appetizers to Desserts. Garden City Park, N.Y: Avery Publishing Group. ISBN 0-89529-668-3. OCLC 33142807. 
  10. ^ Whitaker, Julian M. (2001). Reversing Diabetes. New York: Warner Books. ISBN 0-446-67658-6. OCLC 45058465. 
  11. ^ Gruda, N (2005). "Impact of Environmental Factors on Product Quality of Greenhouse Vegetables for Fresh Consumption". Crit. Rev. Plant Sci. 24(3): Taylor & Francis Group. pp. 227–247. 
  12. ^ Steinmetz KA, Potter JD (1996). "Vegetables, fruit, and cancer prevention: a review". J Am Diet Assoc 96 (10): 1027–39. doi:10.1016/S0002-8223(96)00273-8. PMID 8841165. 
  13. ^
  14. ^
  15. ^
  16. ^ Food Safety Basics for Fruits and Vegetables at the Centers for Disease Control and Prevention
  17. ^ Pawanexh Kohli (2008), Why Cold Chain for Vegetables in Fruits and Vegetables Post-Harvest Care: The Basics. Crosstree Techno-visors
  18. ^ "67.080: Fruits. Vegetables". International Organization for Standardization. Retrieved 2009-04-23. 

Further reading

  • Munro, Derek B., Small, E. 1997 Vegetables of Canada. NRC Research Press, Ottawa ISBN 978-0-660-19503-2

External links



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