Food and drink

Question

This piglix contains articles or sub-piglix about Food and drink

Answer 1

Natural foods

Natural foods and all natural foods are widely used terms in food labeling and marketing with a variety of definitions, most of which are vague. The term is often assumed to imply foods that are minimally processed and whose ingredients are all natural products (in the chemist's sense of that term), thus conveying an appeal to nature. But the lack of standards in most jurisdictions means that the term assures nothing. In some countries, the term “natural” is defined and enforced. In others, such as the United States, it is not enforced.

“Natural foods” are often assumed to be foods that are minimally processed, or do not contain any food additives, or do not contain particular additives such as hormones, antibiotics, sweeteners, food colors, or flavorings that were not originally in the food. In fact, many people (63%) when surveyed showed a preference for products labeled "natural" compared to the unmarked counterparts, based on the common belief (86% of polled consumers) that the term "natural" indicated that the food does not contain any artificial ingredients. The terms are variously used and misused on labels and in advertisements.

The international Food and Agriculture Organization’s Codex Alimentarius does not recognize the term “natural” but does have a standard for organic foods.

Fundamentally, almost all foodstuffs are derived from the natural products of plants and animals

In the United Kingdom, the Food Standards Agency has published criteria for the use of several terms in food labeling. The guidance, in general, restricts the use of natural to foods that have “ingredients produced by nature, not the work of man or interfered with by man.” Natural flavorings are explicitly defined by separate laws.

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Answer 2

Snack

A snack is a portion of food, smaller than a regular meal, generally eaten between meals. Snacks come in a variety of forms including packaged snack foods and other processed foods, as well as items made from fresh ingredients at home.

Traditionally, snacks are prepared from ingredients commonly available in the home. Often cold cuts, fruit, leftovers, nuts, sandwiches, and the like are used as snacks. The Dagwood sandwich was originally the humorous result of a cartoon character's desire for large snacks. With the spread of convenience stores, packaged snack foods became a significant business. Snack foods are typically designed to be portable, quick, and satisfying. Processed snack foods, as one form of convenience food, are designed to be less perishable, more durable, and more portable than prepared foods. They often contain substantial amounts of sweeteners, preservatives, and appealing ingredients such as chocolate, peanuts, and specially-designed flavors (such as flavored potato chips).

Beverages, such as coffee, are not generally considered snacks though they may be consumed along with or in lieu of snack foods.

A snack eaten shortly before going to bed or during the night may be called a (mid)night snack.

In the United States, the first snack food was the peanut. Peanuts first arrived from South America via slave ships, and became incorporated into African-inspired cooking on southern plantations. After the Civil War, the taste for peanuts spread north, where they were incorporated into the culture of baseball games and vaudeville theaters.

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Answer 3

Space food

Space food is a variety of food products, specially created and processed for consumption by astronauts in outer space. The food has specific requirements of providing balanced nutrition for individuals working in space, while being easy and safe to store, prepare and consume in the machinery-filled weightless environments of manned spacecraft. In recent years, space food has been used by various nations engaging on space programs as a way to share and show off their cultural identity and facilitate intercultural communication. Although astronauts consume a wide variety of foods and beverages in space, the initial idea from The Man in Space Committee of the Space Science Board was to supply astronauts with a formula diet that would supply all the needed vitamins and nutrients.

For lunch on Vostok I (1961) Yuri Gagarin ate three 160 g toothpaste-type tubes, two of which contained servings of puréed meat and one which contained chocolate sauce.

In August 1961, Soviet Cosmonaut Gherman Titov became the first human to experience space sickness on Vostok II; he holds the record for being the first person to vomit in space. According to Lane and Feeback, this event "heralded the need for space flight nutrition."

One of John Glenn's many tasks, as the first American to orbit Earth in 1962, was to experiment with eating in weightless conditions. Some experts had been concerned that weightlessness would impair swallowing. Glenn experienced no difficulties and it was determined that microgravity did not affect the natural swallowing process, which is enabled by the peristalsis of the esophagus.

Astronauts in later Mercury missions (1959–1963) disliked the food that was provided. They ate bite-sized cubes, freeze-dried powders, and tubes of semiliquids. The astronauts found it unappetizing, experienced difficulties in rehydrating the freeze-dried foods, and did not like having to squeeze tubes or collect crumbs. Prior to the mission, the astronauts were also fed low residual launch-day breakfasts, to reduce the chances that they would defecate in flight.

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Answer 4

Thirst

Thirst is the craving for fluids, resulting in the basic instinct of animals to drink. It is an essential mechanism involved in fluid balance. It arises from a lack of fluids or an increase in the concentration of certain osmolites, such as salt. If the water volume of the body falls below a certain threshold or the osmolite concentration becomes too high, the brain signals thirst.

Continuous dehydration can cause many problems, but is most often associated with renal problems and neurological problems such as seizures. Excessive thirst, known as polydipsia, along with excessive urination, known as polyuria, may be an indication of diabetes mellitus or diabetes insipidus.

There are receptors and other systems in the body that detect a decreased volume or an increased osmolite concentration. They signal to the central nervous system, where central processing succeeds. Some sources, therefore, distinguish "extracellular thirst" from "intracellular thirst", where extracellular thirst is thirst generated by decreased volume and intracellular thirst is thirst generated by increased osmolite concentration. Nevertheless, the craving itself is something generated from central processing in the brain, no matter how it is detected.

It is vital for organisms to be able to maintain their fluid levels in very narrow ranges. The goal is to keep the interstitial fluid, the fluid outside the cell, at the same concentration as the intracellular fluid, fluid inside the cell. This condition is called isotonic and occurs when the same level of solutes are present on either side of the cell membrane so that the net water movement is zero. If the interstitial fluid has a higher concentration of solutes than the intracellular fluid it will pull water out of the cell. This condition is called hypertonic and if enough water leaves the cell it will not be able to perform essential chemical functions. If the interstitial fluid becomes less concentrated the cell will fill with water as it tries to equalize the concentrations. This condition is called hypotonic and can be dangerous because it can cause the cell to swell and rupture. One set of receptors responsible for thirst detects the concentration of interstitial fluid. The other set of receptors detects blood volume.

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Answer 5

Whole food

Whole foods are foods that are unprocessed and unrefined, or processed and refined as little as possible, before being consumed. Examples of whole foods include unpolished grains, beans, fruits, vegetables, and animal products, including meats and non-homogenized dairy products. The earliest use of the term in the post-industrial age appears to be in 1946 in The Farmer, a quarterly magazine published and edited from his farm by F. Newman Turner, a writer and pioneering organic farmer. The magazine sponsored the establishment of the Producer Consumer Whole Food Society Ltd, with Newman Turner as president and Derek Randal as vice-president. Whole Food was defined as ‘Mature produce of field, orchard, or garden without subtraction, addition, or alteration grown from seed without chemical dressing, in fertile soil manured solely with animal and vegetable wastes, and composts therefrom, and ground, raw rock and without chemical manures, sprays, or insecticides’ Its principal aim was to act as a liaison between suppliers and the growing public demand for such food. In 1960 the leading organic food organization called the Soil Association opened a shop in the name selling organic and whole grain products in London, UK.

"Diets rich in whole and unrefined foods, like whole grains, dark green and yellow/orange-fleshed vegetables and fruits, legumes, nuts and seeds, contain high concentrations of antioxidant phenolics, fibers and numerous other that may be protective against chronic diseases." A diet rich in a variety of whole foods has been hypothesized as possibly anti-cancer due to the synergistic effects of antioxidants and phytochemicals common in whole foods.

A focus on heterogeneous whole foods offers benefits over a reliance on dietary supplements for most people. They provide nutrition for being a source of more micronutrients, essential dietary fiber and naturally occurring protective substances, such as phytochemicals.

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