Items considered food may be sourced from plants, animals or other categories such as fungus or fermented products like alcohol. Although many human cultures sought food items through hunting and gathering, today most cultures use farming, ranching, and fishing, with hunting, foraging and other methods of a local nature included but playing a minor role.
Many cultures have diversified their foods by means of preparation, cooking methods and manufacturing.
There are around 2,000 plant species which are cultivated for food, and many have several distinct cultivars. McGee ,253.
In fact, the majority of food consumed by human beings are seed-based foods. Edible seeds include cereals (such as maize, wheat, and rice), legumes (such as beans, peas, and lentils), and nut. Oilseeds are often pressed to produce rich oils, such as sunflower, rapeseed (including canola oil), and sesame. McGee, Chapter 9.
Many plants have evolved fruits that are attractive as a food source to animals, so that animals will eat the fruits and excrete the seeds some distance away. Fruits, therefore, make up a significant part of the diets of most cultures. Some botanical fruits, such as tomatoes, pumpkins and eggplants, are eaten as vegetables. McGee, Chapter 7.
In addition birds and other animals lay eggs, which are often eaten, and bees produce honey, a popular sweetener in many cultures. Some cultures consume blood, some in the form of blood sausage, as a thickener for sauces, a cured salted form for times of food scarcity, and others use blood in stews such as civet. Davidson, 81-82.
More recently, there has been a growing trend towards more sustainable agricultural practices. This approach, which is partly fueled by consumer demand, encourages biodiversity, local self-reliance and organic farming methods. Mason Major influences on food production are international organizations, (e.g. the World Trade Organization and Common Agricultural Policy), national government policy (or law), and war. Messer, 53-91.
In addition fish and seafood may be fabricated into smaller cuts by a fish monger at the local level.
This can be as simple as a butcher preparing meat, or as complex as a modern international food industry. Early food processing techniques were limited by available food preservation, packaging and transportation. This mainly involved salting, curing, curdling, drying, pickling, fermentation and smoking. Aguilera, 1-3.
Supermarkets brought with them a self service approach to shopping using shopping carts, and were able to offer quality food at lower cost through economies of scale and reduced staffing costs. In the latter part of the 20th century, this has been further revolutionized by the development of vast warehouse-sized out-of-town supermarkets, selling a wide range of food from around the world. Humphery Unlike food processors, food retailing is a two-tier market in which a small number of very large companies control a large proportion of supermarkets. The supermarket giants wield great purchasing power over farmers and processors, and strong influence over consumers.
Reasons for this development are freak weather, dramatic changes in the global economy, including higher oil prices, lower food reserves and growing consumer demand in China and India. In the long term, prices are expected to stabilize. Farmers will grow more grain for both fuel and food and eventually bring prices down. Already this is happening with wheat, with more crops to be planted in the United States, Canada and Europe in 2009. However, the Food and Agriculture Organization projects that consumers still face at least until 2018 more expensive food. It is rare that the spikes are hitting all major foods in most countries at once. Food prices rose 4 percent in the United States 2007, the highest rise since 1990, and are expected to climb as much again 2008. As of December 2007, 37 countries faced food crises, and 20 had imposed some sort of food-price controls. In China, the price of pork has jumped 58 percent in 2007. In the 1990s and 1980s, farm subsidies and support programs allowed major grain exporting countries to hold large surpluses, which could be tapped during food shortages to keep prices down. But new trade policies have made agricultural production much more responsive to market demands -- putting global food reserves at their lowest since 1983. CNN "[Food prices rising across the world" 24 March 2008 Food prices are rising, wealthier Asian consumers are westernizing their diets, and farmers and nations of the third world are struggling to keep up the pace. The past five years have seen rapid growth in the contribution of Asian nations to the Global Fluid and Powdered Milk Manufacturing industry, which in 2008 accounts for more than 30% of production, while China alone accounts for more than 10% of both production and consumption in the Global Fruit and Vegetable Processing and Preserving industry. The trend is similarly evident in industries such as Soft Drink and Bottled Water Manufacturing, as well as Global Cocoa, Chocolate and sugar Confectionery Manufacturing, forecast to grow by 5.7% and 10.0% respectively during 2008 in response to soaring demand in China and Southeast Asian markets May 2008, GLOBAL TRENDS: - Food Production and Consumption: The China Effect , IBISWorld.
This can have a devastating and widespread effect on human health and mortality. Rationing is sometimes used to distribute food in times of shortage, most notably during times of war.
Roughly 7 million people die of food poisoning each year, with about 10 times as many suffering from a non-fatal version. National Institute of Health, MedlinePlus Medical Encyclopedia The two most common factors leading to cases of bacterial foodborne illness are cross-contamination of ready-to-eat food from other uncooked foods and improper temperature control. Less commonly, acute adverse reactions can also occur if chemical contamination of food occurs, for example from improper storage, or use of non-food grade soaps and disinfectants. Food can also be adulterated by a very wide range of articles (known as 'foreign bodies') during farming, manufacture, cooking, packaging, distribution or sale. These foreign bodies can include pests or their droppings, hairs, cigarette butts, wood chips, and all manner of other contaminants. It is possible for certain types of food to become contaminated if stored or presented in an unsafe container, such as a ceramic pot with lead-based glaze.
This occurs when a person's immune system mistakes a certain food protein for a harmful foreign agent and attacks it. About 2% of adults and 8% of children have a food allergy. National Institute of Health The amount of the food substance required to provoke a reaction in a particularly susceptible individual can be quite small. In some instances, traces of food in the air, too minute to be perceived through smell, have been known to provoke lethal reactions in extremely sensitive individuals. Common food allergens are gluten, corn, shellfish (mollusks), peanuts, and soy.
Wansink, Why We Eat More Than We Think Although humans are omnivores, many cultures hold some food preferences and some food taboos. Dietary choices can also define cultures and play a role in religion. For example, only kosher foods are permitted by Judaism, and halal/haram foods by Islam, in the diet of believers. Simoons In addition, the dietary choices of different countries or regions have different characteristics. This is highly related to a culture's cuisine.
Source: Wikipedia > Food
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