
Dave Asprey is an American entrepreneur and author. He founded Bulletproof 360, Inc. in 2013, and in 2017, founded Bulletproof Nutrition Inc. He has written five books. Men's Health described Asprey as a "lifestyle guru".

The Atkins diet is a low-carbohydrate fad diet devised by Robert Atkins in the 1970s, marketed with claims that carbohydrate restriction is crucial to weight loss and that the diet offered "a high calorie way to stay thin forever".

Atkins Nutritionals, Inc. was founded by Robert Atkins in order to promote the low-carbohydrate packaged foods of the Atkins diet. As of 2017, it is part of The Simply Good Foods Company. The company sells low-carbohydrate bars, shakes, and snacks.

Ayds Reducing Plan Candy is a discontinued appetite-suppressant candy that enjoyed strong sales in the 1970s and early 1980s and was originally manufactured by The Carlay Company.

Jenny Craig, Inc., often known simply as Jenny Craig, is an American weight loss, weight management, and nutrition company. The company has more than 700 weight management centers in Australia, the United States, Canada, and New Zealand. The program combines individual weight management counseling with a menu of frozen meals and other foods which are distributed through its centers or shipped directly to clients.

eDiets.com, Inc. is an online service offering professional dietary, nutritional, and exercise advice. The company was formed in 1997. Originally called Practi-cal, the original 12-week weight management program was based on Weighting For Wellness, written by Donna DeCunzo, RD, LD. The program incorporated nutrition, fitness, behavior modification and stress management as part of its tenets. Steve Johnson programmed the database and Dave Humble wrote the business plan.

Healthy Choice is the name of a brand of refrigerated and frozen foods owned by ConAgra Foods. According to ConAgra's official corporate history, it came into being after then-ConAgra CEO Charles "Mike" Harper suffered a heart attack in 1985. Forced to dramatically alter his diet, he came up with the idea of a line of healthier frozen foods.

Lean Cuisine is a brand of frozen entrées and dinners sold in the United States and Canada by Nestlé, and in Australia by Vesco. The brand began as low-fat, low-calorie versions of Stouffer's products. Today, Lean Cuisine includes traditional dinners, ethnic dishes, pizzas, whole-grain Spa Cuisine entreés, and panini. The headquarters of Lean Cuisine in the United States is located in Solon, Ohio, a suburb of Cleveland.

Dean Michael Ornish is an American physician and researcher. He is the president and founder of the nonprofit Preventive Medicine Research Institute in Sausalito, California, and a Clinical Professor of Medicine at the University of California, San Francisco. The author of Dr. Dean Ornish's Program for Reversing Heart Disease, Eat More, Weigh Less and The Spectrum, he is a well-known advocate for using diet and lifestyle changes to treat and prevent heart disease. The Ornish Reversal Program is covered by Medicare.

Reformhaus is a type of German retail store that specializes in groceries and personal care products according to the principles of the 19th-century Lebensreform movement, for example the products are vegetarian, often organic, and free of synthetic preservatives. In English-speaking countries this particular form of retail shop is usually called a health food store. However, there are also other health food stores in Germany called Naturkostladen, which are the exact equivalent of a health food store, and not generally connected to the Reformhaus stores.

Sensa is an American brand of diet aid created by Alan Hirsch, an American neurologist and psychiatrist. The product lacks scientific evidence of effect and has been the subject of controversy and lawsuits. Following a $26 million fine by the U.S. Federal Trade Commission in 2014, the company ceased operations.

SlimFast is an American company headquartered in Palm Beach Gardens, Florida that markets an eponymous brand of shakes, bars, snacks, packaged meals, and other dietary supplement foods sold in the U.S., Canada, France, Germany, Iceland, Ireland, Latin America, and the U.K. SlimFast promotes diets and weight loss plans featuring its food products.

Slimming World is a Derbyshire, England-based weight loss organisation that caters for men and women of all ages. It was founded in Derbyshire in 1969 by Margaret Miles-Bramwell, who remains its chairman.

Special K is a brand of breakfast cereal and meal bars manufactured by Kellogg's. The cereal was introduced to the United States in 1955. It is made primarily from grains like lightly toasted rice, wheat and barley. Special K used to be marketed primarily as a low-fat cereal that can be eaten to help one lose weight.

Sweet'n Low is a brand of artificial sweetener made primarily from granulated saccharin. It also contains dextrose and cream of tartar, and is distributed primarily in packets. There have been over 500 billion Sweet'N Low packets produced.

Weight Wins is a UK weight loss business which has developed and commercialised the concept of personal contracts for weight loss. The company has attracted attention from UK and international media for its 'Pounds for Pounds' weight loss programme and for operating the first trial by the UK's National Health Service (NHS) of a weight loss incentive programme. The diet rewards sector addresses the specific problem of overweight and obesity. As with many commercial diet plans, there is no good evidence it is helpful or cost-effective.

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.