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A soft drink is normally considered to be a cold, non-alcoholic, carbonated drink. Hot chocolate, tea, and coffee are not considered soft drinks. The term originally referred exclusively to carbonated drinks, and is still commonly used in this manner.

Soft drinks in a Virginia supermarket
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Soft drinks in a Virginia supermarket

Fizzy drinks

Fizzy drinks (carbonated beverages) are produced by injecting carbon dioxide into the drink at a pressure of several atmospheres. Carbon dioxide dissolves readily at normal atmospheric pressure, particularly in cold beverages, but far more so at high pressure and large volumes of gas can be dissolved. When the pressure is released the carbon dioxide comes out of solution forming numerous bubbles and begins releasing the carbon dioxide back into the atmosphere. After many minutes most of the carbon dioxide has been released and the drink is said to be "flat".

The chemical phenomenon whereby carbonated drinks taste fizzy is due to carbonic acid inducing a slight burning sensation, and is only indirectly related to the bubbles- both phenomena are caused by the carbonic acid concentration.

Carbonation can also be produced by partial fermentation in a sealed container. This is the method used in the production of ginger beer and by careful control, and use of appropriate yeasts, the alcohol level can be kept very low.

Packaging

Soft Drinks such as Diet Pepsi come in a variety of packaging
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Soft Drinks such as Diet Pepsi come in a variety of packaging

Soft drinks may be sold in Two-liter bottles, in single cans, or in other packaged quantities like six-packs. they may also be served as fountain drinks.

Marketing

Soft drinks are commonly sold in stores in bottles and cans. They can also be dispensed using a soda gun. Sales earn a significant amount of money for the producers and distributors. Most famous name-brand soft drinks are produced and bottled by local or regional independent bottling companies. These companies license the name, and are usually sold the main ingredients, with syrup made by the main manufacturing plants of the trademark holders.

In the past, most cola-flavoured and other soft drinks were sweetened with ordinary sugar (sucrose), but to save on production costs in some markets, HFCS (high fructose corn syrup) is now commonly used as a sweetener.

Competition in the industry among soft drink producers is widely referred to as the cola wars, a term mainly used to describe the ongoing battle for market supremacy between Coca-Cola and Pepsi. In the mid-1990s, Pepsi launched its largest attack of the "cola wars," the giant Pepsi Stuff strategy.

Diet soft drinks

In recent years, there has been a growing demand for alternatives to sugar-heavy soft drinks. "Regular" soft drinks today contain high fructose corn syrup, and have been blamed in recent years for contributing to obesity. Sugars, like other carbohydrates, stimulate the production of the hormone insulin, which causes the body to store fat rather than burn it. "Diet" soft drinks are sweetened with chemicals, usually aspartame, saccharin, sucralose, acesulfame potassium, or a combination of those, that are perceived as sweet by most people, yet do not stimulate insulin production or have any food energy or nutritional value. These artificial sweeteners are also controversial, as many of them are subject to claims that they may cause cancer or other illnesses.

Naming conventions

  • In Portugal, soft drinks are called refrigerante.
  • One should be aware of the variation used in the region, or you either won't be understood, or stand out as a tourist.

    See also: List of soft drinks by country

    Mixed soft drinks

    A beverage made by mixing many soft drinks together, usually from a soda fountain, is variously known as a graveyard, suicide, pop bomb, swamp water, or garbage soda.

    Floats

    A float is created by dropping a scoop of ice cream into a soft drink. In the midwestern United States, a soft drink with ice cream added is most often called an "ice cream soda," or soda, for short as they were made at soda fountains. The most common of these is the Root beer float. In Australia and New Zealand, this is known as a Spider. In Scotland (Mainly West) this is sometimes referred to as an "iced drink".

    In Brazil, a scoop of ice cream into a soft drink may have different names:

    In Belfast, the capital of Northern Ireland, there is a regional variation: Cola (regardless of brand) and vanilla ice cream constitute a "coke afloat".

    In the U.S., some floats have specific names as a Purple Cow, Brown Cow, or Black Cow, which is vanilla ice cream in root beer, or Boston cooler, which is vanilla ice cream in Vernor's ginger ale.

    Controversy

    Nutritional value

    Soft drinks obtain almost 100% of their food energy in the form of refined cane sugar or corn syrup. While the USDA recommended daily allotment (RDA) of added sugars is 10 teaspoons for a 2,000-calorie diet, many soft drinks contain more than this amount.

    Unless fortified, it also contains little to no vitamins, minerals, fiber, protein, or other essential nutrients. Additionally some brands of soft drinks may contain questionable food additives such as food colouring, artificial flavouring, emulsifiers, and preservatives. Some also argue that caffeine-containing soft drinks are not a valid source of dietary fluids because of the diuretic properties of caffeine; this is disputed.[link]

    Soft drinks may also displace other more nutritional food choices, such as milk and fruit juice, in people's diets.

    Studies showing a correlation between soft drinks and obesity

    A study from Harvard shows that soft drinks may be responsible for the doubling of obesity in children over the last 15 years.

    From 1991 and 1995, adolescent boys in the US, on average, increased their intake of soft drinks from 345 mL to 570 mL. Most soft drinks are sweetened with sugar or corn syrup, and not artificial sweeteners. Dr. David Ludwig of the Boston Children's Hospital showed that school children drinking at least eight U.S. fluid ounces (240 mL) or more of regularly sweetened drinks daily will consume 835 calories (3,500 kilojoules) more than those avoiding soft drinks; i.e., children who drink soft drinks loaded with sugar tend to eat much more food than those who avoid soft drinks. Either those taking sugared drinks lack the same restraint on foods, or sugared drinks cause a rise in insulin that makes adolescents more hungry, causing them to eat more. Soft drinks (including diet soft drinks) are also typically consumed with other high-calorie foods such as fast food. Children who drink soft drinks regularly are therefore fatter on average, in addition to being more likely to develop diabetes later in life (see below).

    Source: - Lancet 2001;357:505-08. "Relation between consumption of sugar-sweetened drinks and childhood obesity: a prospective, observational analysis" Dr. David Ludwig from the Children's Hospital Boston and colleagues at the Harvard School of Public Health.
    This finding is controversial, because children in much of the Third World also consume large numbers of soft drinks with even more sugar, and do not share the same obesity rates as American children, suggesting that other factors are involved aside from sugar consumption in soft drinks.[[Citing sources citation needed]] Suggested factors include physical activity, and the fact that American soft drinks are sweetened with high fructose corn syrup instead of cane sugar. Monosodium glutamate (MSG), which is used to enhance the sweetness of some soft drink beverages, could also play a role by stimulating appetite.

    In March 2006, Pediatrics published a paper [Effects of Decreasing Sugar-Sweetened Beverage Consumption on Body Weight in Adolescents: A Randomized, Controlled Pilot Study]. This suggests that reducing consumption of sugar-sweetened beverages helped reduce body mass index in the heaviest teenagers. This was reported as drinking as a single 330ml can a day of sugary drinks translated to more than 1lb of weight gain every month. [link]

    Soft drinks linked to weight gain and type 2 diabetes

    In 2004, an eight-year study of 50,000 nurses showed a correlation that suggests drinking one or more sugar-sweetened beverages (such as soft drinks and fruit punches) per day increases one's risk of developing diabetes by 80% versus those who drink less than one such drink per month. This finding was independent of other lifestyle factors. It concludes, "Higher consumption of sugar-sweetened beverages is associated with a greater magnitude of weight gain and an increased risk for development of type 2 diabetes in women, possibly by providing excessive calories and large amounts of rapidly absorbable sugars." Schulze MB, Manson JE, Ludwig DS, Colditz GA, Stampfer MJ, Willett WC, Hu FB [Sugar-sweetened beverages, weight gain, and incidence of type 2 diabetes in young and middle-aged women] JAMA. 2004 Aug 25;292(8):927-34..

    Soft drinks and sleep

    According to one report, [Fizzy drinks "affect children's sleep"], soft drinks with caffeine can disrupt children's sleep and leave them feeling tired during the day.

    Banning

    In recent years, debate on whether soft drink vending machines should be allowed in school has been on the rise. Proponents believe that soft drinks are a significant contributor to childhood obesity and tooth decay, and that allowing soft drink sales in schools encourages children to believe they are safe to consume in moderate to large quantities. Proponents note that children are not always mature enough to understand the consequences of their own food choices, and should not be routinely exposed to the temptation of cheap, readily available soft drinks. They also argue that schools have a responsibility to look after the health of the children in their care, and that allowing children easy access to soft drinks violates that responsibility. Opponents believe that obesity is a complex issue and soft drinks are not the only cause. Some people take the middle ground, saying that soft drink machines should be allowed in schools, but that they should not be the only option available. They propose that when soft drink vending machines are made available in school grounds, the schools should be required to provide children with a choice of alternative drinks (such as fruit juice, flavored water and milk) at a comparable price. However, fruit drinks may contain as much sugar as the soft drinks they replace.

    The American Beverage Association has produced a factsheet [State Laws & Regulations Governing Beverage Sales in Schools] (PDF format).

    On 3 May 2006, the [Alliance for a Healthier Generation], Cadbury Schweppes, Coca-Cola, PepsiCo, and the American Beverage Association announced new [School Beverage Guidelines] that will voluntarily remove high-calorie soft drinks from all US schools.

    On 19 May 2006, UK Education Secretary Alan Johnson announced new minimum nutrition standards for school food. Amongst a wide range of measures, from September 2006, school lunches will be free from fizzy drinks. Schools will also end the sale of junk food (including fizzy drinks) in vending machines and tuck shops. See the Department for Education and Skills [press notice] for details.

    Carcinogens in soft drinks

    In 1990, the major soft drink companies had documentation about benzene in soft drinks. It was originally thought that it was caused by Contaminated CO2, but it was rather the breakdown of benzoate. Uploaded documentation shows that "Off the shelf" benzene was 25 parts per million, and after exposure, 85 ppm. In 2005, a court in India required Coke and Pepsi to disclose this documentation Providence Journal March 12, 2006. In 2006, the UK Food Standards Agency published its ["Survey of benzene levels in soft drinks"], which tested 150 products and found that four contained benzene levels above the World Health Organization (WHO) guidelines for drinking water. The agency asked for these to be removed from sale.

    Taxation

    Some health officials believe that a small tax on soft drinks may help curb consumption while raising money to fight obesity. (See fat tax) Others believe this creates a conflict of interest for the government who collects these taxes, and may undermine their ability to reduce consumption of soft drinks. [link]

    Notes

    External links

    Industry bodies and news

    Soft drinks and health

     


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