Dieting is the practice of eating food in a regulated way to decrease, maintain, or increase body weight, or to prevent and treat diseases such as diabetes and obesity. As weight loss depends on calorie intake, different kinds of calorie-reduced diets, such as those emphasising particular macronutrients, have been shown to be no more effective than one another. As weight regain is common, diet success is best predicted by long-term adherence. Regardless, the outcome of a diet can vary widely depending on the individual.
Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it can potentially have negative effects on health. People are classified as obese when their body mass index (BMI)—a person's weight divided by the square of the person's height—is over 30 kg/m2; the range 25–30 kg/m2 is defined as overweight. Some East Asian countries use lower values to calculate obesity. Obesity is a major cause of disability and is correlated with various diseases and conditions, particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis.
Gwendolyn Henley Shamblin Lara was the founder of the Remnant Fellowship Church, founder of the Christian diet program The Weigh Down Workshop, and an American author.
Weight loss, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, by a mean loss of fluid, body fat, or lean mass. Weight loss can either occur unintentionally because of malnourishment or an underlying disease, or from a conscious effort to improve an actual or perceived overweight or obese state. "Unexplained" weight loss that is not caused by reduction in calorific intake or increase in exercise is called cachexia and may be a symptom of a serious medical condition.
A fad diet is a diet that is popular, generally only for a short time, similar to fads in fashion, without being a standard scientific dietary recommendation, and often making unreasonable claims for fast weight loss or health improvements; as such it is often considered a type of pseudoscientific diet. Fad diets are usually not supported by clinical research and their health recommendations are not peer-reviewed, thus they often make unsubstantiated statements about health and disease.
WW International, Inc., formerly Weight Watchers International, Inc., is a global company headquartered in the U.S. that offers weight loss and maintenance, fitness, and mindset services such as the Weight Watchers comprehensive diet program. Founded in 1963 by Queens, New York City homemaker Jean Nidetch, WW's program has three options as of 2019: online via its mobile app and website, coaching online or by phone, or in-person meetings.
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. 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.
Body for Life (BFL) is a 12-week nutrition and exercise program, and also an annual physique transformation competition. The program utilizes a low-fat high-protein diet. It was created by Bill Phillips, a former competitive bodybuilder and previous owner of EAS, a manufacturer of nutritional supplements. It has been popularized by a bestselling book of the same name.
A healthy diet is a diet that maintains or improves overall health. A healthy diet provides the body with essential nutrition: fluid, macronutrients such as protein, micronutrients such as vitamins, and adequate fibre and food energy.
Fat feminism, often associated with "body-positivity", is a social movement that incorporates feminist themes of equality, social justice, and cultural analysis based on the weight of a woman. This branch of feminism intersects misogyny and sexism with anti-fat bias. Fat feminists advocate body-positive acceptance for all bodies, regardless of their weight, as well as eliminating biases experienced directly or indirectly by fat people. Fat feminists originated during third-wave feminism and is aligned with the fat acceptance movement. A significant portion of body positivity in the third-wave focused on embracing and reclaiming femininity, such as wearing makeup and high heels, even though the second-wave fought against these things. Contemporary western fat feminism works to dismantle oppressive power structures which disproportionately affect working class poor people or poor people generally. It covers a wide range of topics such as diet culture, fat-phobia, representation in media, ableism, and employment discrimination.
Nathan Pritikin was an American inventor, engineer, nutritionist and longevity researcher. He promoted the Pritikin diet, a high-carbohydrate low-fat plant-based diet combined with regular aerobic exercise to prevent cardiovascular disease. The Pritikin diet emphasizes the consumption of legumes, whole grains, fresh fruit and vegetables and non-fat dairy products with small amounts of lean meat, fowl and fish.
Being overweight is having more body fat than is optimally healthy. Being overweight is especially common where food supplies are plentiful and lifestyles are sedentary.
Intermittent fasting is any of various meal timing schedules that cycle between voluntary fasting and non-fasting over a given period. Methods of intermittent fasting include alternate-day fasting, periodic fasting, such as the 5:2 diet, and daily time-restricted eating.
The South Beach Diet is a popular fad diet developed by Arthur Agatston and promoted in his bestselling 2003 book. It emphasizes eating food with a low glycemic index, and categorizes carbohydrates and fats as "good" or "bad". Like other fad diets, it may have elements which are generally recognized as sensible, but it promises benefits not backed by supporting evidence or sound science.
Obesity in the Middle East and North Africa is a notable health issue. Out of the 15 fattest nations in the world as of 2014, according to the World Health Organization (WHO), five were located in the Middle East and North Africa region.
Management of obesity can include lifestyle changes, medications, or surgery. Although many studies have sought effective interventions, there is currently no evidence-based, well-defined, and efficient intervention to prevent obesity.
Coaches are professional tutors who have expertise in their preferred area of study. Weight loss coaches, specifically, have clientele within the health and fitness industry.
Body shape refers to the many physical attributes of the human body that make up its appearance, including size and countenance. Body shape has come to imply not only sexual/reproductive ability, but wellness and fitness. In the West, slenderness is associated with happiness, success, youth, and social acceptability. Being overweight is associated with laziness. The media promote a weight-conscious standard for women more often than for men. Deviance from these norms result in social consequences. The media perpetuate this ideal in various ways, particularly glorifying and focusing on thin actors and actresses, models, and other public figures while avoiding the use or image of overweight individuals. This thin ideal represents less than 15% of the American population.
A fitness app is an application that can be downloaded on any mobile device and used anywhere to get fit. Fitness apps are designed to help with exercise, other types of physical training, nutrition and diet, and other ways to get fit.
The 20th century saw multiple trends and changes in women's fitness culture.
