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This piglix contains articles or sub-piglix about Diets
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Diet (nutrition)


In nutrition, diet is the sum of food consumed by a person or other organism. The word diet often implies the use of specific intake of nutrition for health or weight-management reasons (with the two often being related). Although humans are omnivores, each culture and each person holds some food preferences or some food taboos. This may be due to personal tastes or ethical reasons. Individual dietary choices may be more or less healthy.

Complete nutrition requires ingestion and absorption of vitamins, minerals, and food energy in the form of carbohydrates, proteins, and fats. Dietary habits and choices play a significant role in the quality of life, health and longevity.

Some cultures and religions have restrictions concerning what foods are acceptable in their diet. For example, only Kosher foods are permitted by Judaism, and Halal foods by Islam. Although Buddhists are generally vegetarians, the practice varies and meat-eating may be permitted depending on the sects. In Hinduism, vegetarianism is the ideal. Jains are strictly vegetarian and consumption of roots is not permitted.

Many people choose to forgo food from animal sources to varying degrees (e.g. flexitarianism, vegetarianism, veganism, fruitarianism) for health reasons, issues surrounding morality, or to reduce their personal impact on the environment, although some of the public assumptions about which diets have lower impacts are known to be incorrect.Raw foodism is another contemporary trend. These diets may require tuning or supplementation such as vitamins to meet ordinary nutritional needs.



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Vegetarian diets


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Diet drinks


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Religion-based diets


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List of diets


An individual's diet is the sum of food and drink that he or she habitually consumes. Dieting is the practice of attempting to achieve or maintain a certain weight through diet. People's dietary choices are often affected by a variety of factors, including ethical and religious beliefs, clinical need, or a desire to control weight.

Not all diets are considered healthy. Some people follow unhealthy diets through habit, rather than through a conscious choice to eat unhealthily. Terms applied to such eating habits include "junk food diet" and "Western diet". Many diets are considered by clinicians to pose significant health risks and minimal long-term benefit. This is particularly true of "crash" or "fad" diets – short-term weight-loss plans that involve drastic changes to a person's normal eating habits.

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A vegetarian diet is one which excludes meat. Vegetarians also avoid food containing by-products of animal slaughter, such as animal-derived rennet and gelatin.

A desire to lose weight is a common motivation to change dietary habits, as is a desire to maintain an existing weight. Many weight loss diets are considered by some to entail varying degrees of health risk, and some are not widely considered to be effective. This is especially true of "crash" or "fad" diets.

Many of the diets listed below could fall into more than one subcategory. Where this is the case, it is noted in that diet's entry.

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A very low calorie diet is consuming fewer than 800 calories per day. Such diets are normally followed under the supervision of a doctor. Zero-calorie diets are also included.

Crash diet and fad diet are general terms. They describe diet plans which involve making extreme, rapid changes to food consumption, but are also used as disparaging terms for common eating habits which are considered unhealthy. Both types of diet are often considered to pose health risks. Many of the diets listed here are weight-loss diets which would also fit into other sections of this list. Where this is the case, it will be noted in that diet's entry.

Detox diets involve either not consuming or attempting to flush out substances that are considered unhelpful or harmful. Examples include restricting food consumption to foods without colorings or preservatives, taking supplements, or drinking large amounts of water. The latter practice in particular has drawn criticism, as drinking significantly more water than recommended levels can cause hyponatremia.



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5 A Day


5 A Day is any of various national campaigns in countries such as the United States, the United Kingdom and Germany, to encourage the consumption of at least five portions of fruit and vegetables each day, following a recommendation by the World Health Organization that individuals consume "a minimum of 400g of fruit and vegetables per day (excluding potatoes and other starchy tubers)." A meta-analysis of the many studies of this issue was published in 2017 and found that consumption of double the minimum recommendation – 800g or 10 a day – provided an increased protection against all forms of mortality.

It is clear that eating fruit and vegetables improves health. Increasing vegetable intake to this desired level has a variety of major and minor health benefits. Benefits include reduction in the risk of many types of cancer, hypertension, heart disease, stroke, and diabetes. The National Cancer Institute Provided research for the program, while the Produce for Better Health Foundation implemented the program into the food service industry.

Go for 2 & 5 is the equivalent campaign in Australia, in which adults are said to need to eat at least two serves of fruit and five serves of vegetables each day. A "standard serve of fruit" is 150 grams of fresh fruit, whereas a "standard serve of vegetables" is 75 grams.

In Canada, the Canadian Produce Marketing Association (CPMA), the Heart and Stroke Foundation's Health Check Program, and the Canadian Cancer Society have partnered together to create the Fruits and Veggies — Mix it up! campaign, encouraging Canadian families to eat more healthily. The campaign focuses on easy ways for people to eat healthy wherever and whenever they can.

The French PNNS (Programme national nutrition santé, National nutrition health programme) recommends at least 5 portions of fruit and/or vegetables per day.

The 5 am Tag (5 a Day) program operates in Germany.

The 5 A Day campaign in Japan is administered by an NPO: 5 A DAY Association-Japan (一般社団法人 ファイブ・ア・デイ協会). The program recommends five servings a day totaling 350 grams of vegetables and 200 grams of fruit.

5 A Day is also known as 5 + A Day in New Zealand. 5 + A Day was founded in New Zealand in 1994 by non-profit United Fresh New Zealand and became a Charitable Trust in 2007.

Fem om dagen (five a day) is the Norwegian Directorate for Health recommendation to eat five portions of fruit, berry or vegetables each day.



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5:2 diet


The 5:2 diet, or fast diet, is a fad diet which stipulates calorie restriction for two days a week and eating an unmoderated amount for the other five days. A form of intermittent fasting, it originated and became popular in the UK, then spread to the rest of Europe and to the US.

Proponents of the diet claim it causes weight loss and has some beneficial effects on health; however as with other fad diets these claims are not supported by high-quality evidence.

The diet specifies a low calorie consumption (sometimes described as "fasting") for two days a week but allows unmoderated eating for the other five days. Men may eat 600 calories (2,500 kJ) on fasting days, and women 500 calories (2,100 kJ).

Proponents say that fasting for only two days a week may be easier for dieters to comply with than daily calorie restriction.

In general there is a lack of research evidence on intermittent fasting, and there is only limited evidence of the 5:2 diet's safety and effectiveness.

According to NHS Choices, people considering the diet should first consult a physician, as fasting can sometimes be unsafe.

In the UK, the tabloid press has reported on research claiming the 5:2 diet could reduce the risk of breast cancer; however according to the NHS the evidence being considered formed an inadequate basis for making such statements.

The diet became popular in the UK after the BBC2 television Horizon documentary Eat, Fast and Live Longer written and presented by Michael Mosley was broadcast on 6 August 2012 and many books on the diet quickly became bestsellers, soon after.

Dieticians and the UK National Health Service have categorized it as a fad diet.

A news item in the Canadian Medical Association Journal expressed concern that promotional material for the diet showed people eating high-calorie food such as hamburgers and chips, and that this could encourage binge eating since the implication was that "if you fast two days a week, you can devour as much junk as your gullet can swallow during the remaining five days".



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The 8-Week Cholesterol Cure


The New 8-Week Cholesterol Cure is a 1987 health book by Robert Kowalski, who wrote it as a personal recollection about dealing with cholesterol issues. Kowalski wrote the book after having two coronary bypass surgeries and a heart attack. He created the program detailed in the book after he realized that a diet change alone would not help him, and the book is sometimes credited with popularizing oat bran as a health food. Kowalski published three other books in the 8-Week Cholesterol Cure series as well as The Blood Pressure Cure: 8 Weeks to Lower Blood Pressure without Prescription Drugs, which dealt with blood pressure.

In October 1988 a lawsuit was filed by 16 plaintiffs against Kowalski and Harper & Row. The plaintiffs alleged that following the advice listed in the book caused them emotional and physical harm and that the book was not properly researched by its author or publisher.

In the book Kowalski writes about his experiences with cholesterol and uses it to help recommend changes that readers can use to improve their cholesterol. It includes information about cholesterol and what foods people can eat to immediately reduce cholesterol, as well as what vitamins can assist in this process. He also recommends exercise and emphasizes the use of niacin as a cure for cholesterol.

The book became a bestseller after its release in 1987 and was one of the top selling books of 1988, selling so well that Harper & Row opted to postpone its paperback release. It remained on the New York Times Bestsellers List for over 100 weeks and has since been republished in multiple editions, including an audiobook version.

Jerrold Winter criticized the work in his 2012 book True Nutrition, True Fitness, noting that niacin has been used by physicians after other methods have failed and that it is "quite possible that, as a result of reading his book, more will be harmed by the drug than helped."



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The 10%25 Solution for a Healthy Life



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Alkaline diet


Alkaline diet (also known as the alkaline ash diet, alkaline acid diet, acid ash diet, and the acid alkaline diet) describes a group of loosely related diets based on the belief that certain foods can affect the acidity (pH) of bodily fluids, including the urine or blood, and can therefore be used to treat or prevent disease. Due to the lack of credible evidence supporting the benefits of this diet, it is not recommended by dietitians or other health professionals.

Human blood is regulated at pH 7.35 to 7.45. Levels above 7.45 are referred to as alkalosis and levels below 7.35 as acidosis. Both are potentially serious, and the body has acid–base homeostasis mechanisms that generally ensure this does not happen. The idea that this diet can materially affect blood pH, or treat a range of diseases, is incorrect.

Diets avoiding meat, poultry, cheese, and grains can be used in order to make the urine more alkaline (higher pH). However, difficulties in effectively predicting the effects of this diet have led to medications, rather than diet modification, as the preferred method of changing urine pH. The "acid-ash" hypothesis was once considered a risk factor for osteoporosis, though the current weight of scientific evidence does not support this hypothesis. It is, therefore, widely dismissed as pseudoscience.

The term "alkaline diet" has also been used by alternative medicine practitioners, with the proposal that such diets treat or prevent cancer, heart disease, and low energy levels as well as other illnesses. These claims are not supported by evidence and make incorrect assumptions about how alkaline diets function that are contrary to human physiology.



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