If you take a look around, you’ll see that one of every four people is on a diet. Every one who wants to start a diet program always look for a popular weight loss and diet program. After a little search on the web, I found popular weight loss and diet programs. Here are 25 Most Popular Weight Loss & Diet Programs. This list may help you.

1. Weight Watchers (weightwatchers.com)

Weight Watchers offers different dieting products and services to aid weight loss and maintenance. This weight loss plan has always focused on long-term weight management and a commitment to an overall healthy lifestyle. Weight Watchers has 45 years of experience. It now operates in about 30 countries around the world.

2. Food Lovers Fat Loss System (foodloversfatloss.com)

The creator of Food Lovers Fat Loss System is Robert Ferguson. He is one of the best weight loss coaches. The system teaches you how your metabolism works and how you can get rid of your unwanted weight while you eat all your fovorite foods.

3. Sensa Weight Loss (trysensa.com)

Sensa, based on 25 years of research and testing, designed to help you overcome the biological urge to overeat, so you can reduce your calorie consumption and lose weight while continuing to enjoy the foods you love and feeling fully satisfied.

4. Cookie Diet (cookiediet.com)

It was created in 1975 by renowned physician, author, and weight-loss expert Sanford Siegal. Dr. Siegal prepares special cookies for you. You eat  these special cookies and lose weight .

5. Atkins Nutritional Approach (atkins.com)

The Atkins diet is officially called the Atkins Nutritional Approach. This diet program is a low-carbohydrate diet created by Dr Robert Atkins. Atkins diet gives you the power to eat right, lose weight and keep the weight off for a lifetime of healthy living.

6. Slim-Fast (slim-fast.com)

Slim Fast controls hunger up to 4 hours to help you resist cravings and lose weight . The plan features two daily Slim-Fast Meals-delicious, satisfying, nutritionally-balanced shakes or meal bars-along with a Sensible Meal and healthy snacks. Slim Fast promotes diets and weight loss plans featuring its food products.

7. Jenny Craig (jennycraig.com)

The weight management program combines nutrition and physical activity with counseling, to help clients change lifestyle and eating habits. Jenny Craig addresses the three key areas critical to effective weight loss: Food, Body and Mind.

8. Mediterranean Diet (en.wikipedia.org/wiki/Mediterranean_diet)

The Mediterranean diet is based upon the traditional dietary patterns of the countries of the Mediterranean Basin. The major update in the Mediterranean Diet Pyramid is gathering plant foods in a single group to emphasize their health benefits.

9. Zone Diet (zonediet.com)

The Zone diet is a diet popularized in books by biochemist Barry Sears. It advocates consuming calories from carbohydrates, protein and fat in a balanced ratio. The Zone is a place where we find ourselves “feeling alert, refreshed, and full of energy,” according to author Barry Sears, PhD. Sears, a former researcher in bio technology at the Massachusetts Institute of Technology, and the book’s co-author Bill Lawren maintain that life in The Zone is what wellness is all about.

10. Volumetrics (volumetricseatingplan.com)

It’s all about choices, and the Volumetrics Eating Plan helps you choose the right foods for every meal and every lifestyle, without giving up flavor or diversity in your diet. No more “forbidden foods” or monotonous meals -  the Volumetrics Eating Plan will revolutionize the way you think about managing your weight and will guide you to a lifetime of healthy food choices.

11. Flat Belly Diet (flatbellydiet.prevention.com)

Flat Belly Diet is a diet book by Liz Vaccariello (vice-president and editor-in-chief of Prevention) and Cynthia Sass (Prevention’s nutrition director). The book was first published Rodale Books in October 2008. This diet  program promisses a flat belly and weight loss of up to 15 pounds in 32 days.

12. Weigh Down Diet (weighdown.com)

The founder of Weigh Down Diet is Gwen Shamblin. The main philosophy behind the Weigh Down Diet is to take the focus off of food and onto God. Weigh Down teaches that the body is the temple of the Lord and we should not do anything to hurt or abuse it.

13. South Beach Diet (southbeachdiet.com)

The South Beach Diet is designed by Arthur Agatston and dietician Marie Almon. This diet is truly a food lover’s diet. It’s about living well and loving what you eat. The South Beach Diet plan is divided into three Phases. Phase 1 lasts two weeks and is designed to eliminate cravings and kick-start weight loss. Phase 2 is intended to produce long-term, steady weight loss. Phase 3, the lifestyle Phase. This is how you’ll eat and live 365 days a year.

14. Sugar Busters Diet (sugarbusters.com)

The Sugar Busters diet is a diet focused on eliminating foods containing refined carbohydrates such as refined sugar, white flour, and white rice, as well as naturally-occurring carbohydrates rating high on the glycemic index such as potatoes and carrots.

15. Nutrisystem Diet (nutrisystem.com)

The NutriSystem Diet is based on the Glycemic Index of Carbohydrates. By combining exercise, and frequent smaller portioned meals, the glycemic index diet is supposed to reduce hunger (due to a constant blood glucose).

16. Abs Diet (absdiet.com)

The Abs Diet was created by David Zinczenko. The Abs Diet is a revolutionary new diet and exercise plan that promises to dramatically improve your body—fast. The book is written in a style aimed at men, but the principles can be applied to anyone.

17. Low-Carb Diets (en.wikipedia.org/wiki/Low-carbohydrate_diet)

Low-carbohydrate diets or low-carb diets are dietary programs that restrict carbohydrate consumption usually for weight control or for the treatment of obesity.

18. Low Glycemic Index Diet (en.wikipedia.org/wiki/Low_glycemic_index_diet)

The Low Glycemic Index Diet was developed by Dr. David J. Jenkins, a professor of nutrition at the University of Toronto and later turned into a successful line of diet books by author and former president of the Heart and Stroke Foundation of Ontario, Rick Gallop.

19. Ornish Diet (en.wikipedia.org/wiki/Dean_Ornish)

Ornish diet also known as “Eat More, Weigh Less”. The diet, written by Dr. Dean Ornish, is basically vegetarian. This is accomplished by a combination of diet and exercise that allows the body’s fat-burning mechanism to work most effectively.

20. Best Life Diet (thebestlife.com)

Best Life Diet book was written by Bob Greene. He is an American exercise physiologist and certified personal trainer specializing in fitness, metabolism, and weight loss. Best Life Diet covers chapters on healthy food choices, beneficial physical fitness exercises, motivational tips, recipes, and more. The basics of the program include four specific parts to the plan.  The 3 Big Questions, 8 Ways to Curb Your Appetite, 6 Foods to Avoid and your Hunger Scale.

21. The Biggest Loser (biggestloser.com)

The Biggest Loser is a television show broadcast in many countries. The shows centers around overweight contestants attempting to lose weight to fight for a cash prize. The Biggest Loser is aired in many countries. Each country has made its own adaptation to the show; however, the contestants always have the same goal: to lose the most amount of weight to become the Biggest Loser.

22. Pritikin Diet (pritikin.com)

The creator of the Pritkin Diet is Nathan Pritikin. His book is based on the diet became a best-seller on the New York Times Bestseller list and was entitled “The Pritikin Program for Diet and Exercise”. According the information given on its website, more than 100,000 people worldwide have come to Pritikin for one-week programs, two-week programs, and longer.

23. Cabbage Soup Diet (en.wikipedia.org/wiki/Cabbage_Soup_Diet)

The Cabbage soup diet is a radical weight loss diet designed around heavy consumption of a low-calorie cabbage soup over the time of seven days. It is generally considered a fad diet, in that it is designed for short-term weight-loss and requires no long-term commitment.

24. The Hallelujah Diet (hacres.com)

The Hallelujah Diet was created as an attempt to be a biblically-based diet. Developer of the diet program is Rev. George Malkmus. Hallelujah Diet also known as The Hallelujah Diet and Lifestyle.

25.  Yoga Balance Weight Loss Program (yogabalance.com)

Yoga Balance is a program that offers a wholistic approach to losing weight. The program has sour steps: Self-Assessment Test, Weight-Loss Therapies, Eating Plan and Yoga Routine.

Information about the programs or products has been obtained from the relevant websites or wikipedia.org. For complete information about the programs or products visit relevant websites.

Note: Ordering of the weight loss or diet programs isn’t based on any measure.