Ideal Protein Review (UPDATED 2018): Don't Buy Before You Read This!

Eliminating carbs and lowering calories offers three pounds off per week.

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Weight Watchers explains it this way: You eat three Jenny Craig meals plus a snack per day, and supplement with fruit, vegetables and dairy. And do it at least 30 minutes every day—or at least most days of the week—as best as you can fit in your already ridiculously hectic life. In the Zone Delivery Cost: Get your heart rate up and keep it up with fat-burning, good-for-your-heart exercise. If making dietary changes we recommend consulting with your medical doctor. Processed meats like pepperoni, beef jerky, and chicken nuggets are associated with an increased risk of health problems like colon cancer, heart disease, and diabetes.

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List of diets

The other food groups and nutrients are allowed in limited or unlimited quantities, depending on the plan. Weight loss is impossible without a calorie restriction, so each diet has to provide fewer calories than your body needs to maintain your weight. Any diet that claims otherwise can end up causing weight gain. Various diet plans are summarized below to help you learn to review them for safety and effectiveness. The Atkins diet may be one of the most well-known fad diets.

It is a high-protein, high-fat, low-carbohydrate plan. This diet has been around for decades and has undergone many revisions. The previous plan allowed for unrestricted amounts of meat, cheese, and eggs while severely restricting carbohydrates, including sugar , bread, pasta, milk, fruits, and vegetables. The Atkins diet web site states the current plan "is about eating delicious and healthy foods, which makes it so much better than any of those fad diets out there.

You eat a variety of your favorite foods -- lean protein, leafy greens, vegetables, nuts, fruits, whole grains. Plus, you get delicious Atkins bars and shakes from day one and every step of the way.

The plan is based on the theory that eating carbohydrates creates a production of insulin , a hormone secreted from the pancreas, leading to increased weight gain and hunger.

When converting to this approach, the plan holds that dieters will experience a reduced appetite, and their bodies will use stored fat for energy versus burning glucose from carbohydrate digestion. Burning fat for energy will supposedly lead to weight loss. The most recent version of the Atkins diet is by far the most nutritionally balanced. For the first time, the Atkins diet has placed an emphasis on the kinds of fat being consumed instead of allowing all dietary fats.

The monounsaturated and polyunsaturated fats are now emphasized over saturated and trans fats. The diet has also changed to allow "good carbs" instead of severely restricting all carbohydrates. These foods provide fiber , vitamins , and minerals that were once lacking in this diet. The high amount of protein will be beneficial in keeping you full.

Research is clear that protein has a positive impact on increasing satiety, which means that you will feel full between meals. Disadvantages The Atkins diet has gone through numerous revisions over the years, though there was never any acknowledgement of flaws in any of the diet plans. Until recently, there have not been any studies on the safety or efficacy of the Atkins diet. Short-term studies have shown improvements in blood cholesterol and blood sugar and an increased weight loss over the first three to six months in comparison to control diets.

Unfortunately, the weight loss is not sustained at one year, and the improvements that were seen were due to weight loss and not the actual diet. The long-term safety of low-carbohydrate, high-protein diets is unknown at this time. In a rating of diet books done by Consumer Reports, the Atkins diet was ranked at the bottom. There are four phases to the plan, and the first one is severely restricted in carbohydrates. The induction phase lasts two weeks, and the claim is you can lose up to 15 pounds in this time.

During this time you consume no more than 20 grams of carbohydrates per day. For example, one slice of bread has 15 grams of carbohydrates, one serving of fruit has 15 grams of carbohydrates, one serving of dairy has 12 grams of carbohydrates, and one serving of vegetables can have between 5 and 15 grams of carbohydrates. It's clear that 20 grams is extremely limited, potentially unhealthy, and would be very difficult to follow for the long-term.

The Atkins web site states that "depending on how much weight you have to lose, you can safely continue with the induction phase as long as the following three conditions are met:. Most people who follow this diet are not under medical supervision, and this can become a very dangerous situation for them. The the induction phase gets people used to losing weight at a fast rate, which will not last and is not healthy.

Faster weight loss does not mean healthy weight loss. Any diet that emphasizes fast, easy weight loss is one to approach with caution. The guidelines are clear that a safe, healthy rate of weight loss is to lose 1 to 2 pounds per week after the first couple of weeks. The Atkins diet states you will lose "only body fat" by eating regular meals, taking in adequate calories, and keeping your insulin levels down.

There is no way to only lose body fat when losing weight. Claims that you will lose only fat are not based on science despite the fact that the Atkins diet claims to be scientifically based.

The Pritikin diet is a very low-fat, high-carbohydrate eating plan. The focus is to eat vegetables, fruits, and high-fiber grains. Nathan Pritikin's diet is based on the theory of eating low-fat, low-calorie, plant-based foods to promote weight loss and improve or prevent heart disease. The revised Pritikin diet includes a "Calorie Density Solution: Eating low-calorie foods throughout the day will reduce hunger and cause weight loss.

Research has shown that the calorie density of our diets will impact our weight. The calorie density is the amount of calories in a given weight of food. Consuming foods that are considered low-calorie dense aids in weight loss. These foods will provide a high volume without a lot of calories. By replacing foods that are considered high-calorie dense, you save additional calories.

Some find it more satisfying to focus on consuming low-calorie dense foods in large quantities versus counting calories. The Pritikin diet also encourages daily exercise and stress -reduction techniques. The most controversial part of this diet is the severe fat restriction.

There has been a considerable amount of research showing the health benefits of omega-3 fats, including protecting your heart. The American Heart Association now recommends that people without coronary heart disease eat a variety of omega-3 fat-containing fish at least twice a week and that those with coronary heart disease consume one gram of omega-3 fats per day.

Dietary fat is also needed to transport the fat-soluble vitamins A, D, E, and K. Without fat to transport them, they will not be able to serve their functions in your body. Our diets are meant to have a balance of protein, carbohydrates, and fat.

When you consume too little of one of these nutrients it means you are consuming too much of another nutrient. Most people who follow a very low-fat diet end up consuming an excess amount of carbohydrates. Too much of any nutrient can cause health problems. The Dietary Reference Intake DRI established the need for each one of these nutrients based on research for optimal health and weight.

If you follow the Pritikin Principle it would be best to adjust your intake to meet the DRI guidelines. The Zone diet is a high-protein, low-carbohydrate, fat-controlled eating plan. It is not as restrictive as other high-protein diets and it allows for a broad range of foods to be consumed.

A small amount of protein is combined with twice the amount of "favorable" carbohydrates, including fruits and vegetables. If choosing "less desirable" carbohydrates, the portion size is smaller.

Sears' Zone diet is based on the theory that the human body is genetically programmed to reach peak efficiency when all meals, including snacks, consist of a set caloric ratio of carbohydrates, proteins, and fats. When this ratio is achieved, the body is working within the "zone. The Zone diet promotes eating a balance of each nutrient, without severely restricting calories. Protein increases your feeling of fullness, helping you to avoid eating between meals, and there is a guide to what kind of fat you can consume.

Healthy fats are encouraged in place of the saturated and trans fats. The calorie restriction will help you lose weight. The claims made about the health implications of carbohydrates and protein are controversial.

As with other fad diets, one nutrient is being made to look like the enemy carbohydrates , while protein is made to look like the key to weight loss and health. Most diets that are against carbohydrates use the arguments that we consume less fat and more carbohydrates than we did 10 years ago, and obesity is on the rise. This is half true. We consume more carbohydrates, which means we consume more calories.

Our fat intake remains above the recommendations, but the percent of our total calories from fat has come down because we are now consuming more calories. Again, research clearly shows that a balance of each of these nutrients is needed and that an excess or deficiency in any of them will cause problems.

This diet can be difficult to stick with long-term, so weight regain can be an issue. The South Beach Diet. The South Beach diet is the newest high-protein, low carbohydrate, and fat-controlled diet. This diet claims that the cause for obesity "is simple: The faster the sugars and the starches you eat are processed and absorbed into your bloodstream, the fatter you get.

The first phase claims to eliminate cravings and kick-start weight loss; the second phase is for long-term, steady weight loss; and the third phase is to be followed for days a year once you have achieved your weight loss goal. The second and third phases of this diet promote a balanced diet that can be beneficial to your health and weight.

These phases promote consistent meal times, healthy snacks and desserts, and water. The meal plans and recipes can be useful for those who need some guidance on what to eat. There are now six other books and an interactive web site supporting this plan. The theory behind the diet is not the reason you will lose weight if you follow this plan. Weight loss can only occur when you consume fewer calories than your body needs.

In the introduction chapter the author makes numerous claims that you do not need to limit the quantity of food that you consume and then provides portion restrictions on many high calorie foods, such as nuts. It's appealing to hear you can eat unlimited quantities, but weight loss will not be achieved without limitations. The initial phase of this diet should be avoided. This two-week phase claims to produce a weight loss of eight to 13 pounds with severe dietary restrictions; including fruit, dairy, and starches.

Phases like this are usually included so people see quick results, but are limited in time because they are not nutritionally balanced and can't be followed for a long period.

It tends to be more discouraging than motivating to lose quickly and to feel like you are "on a diet. It's best to begin slowly and to always consume a nutritionally balanced diet.

Eat more, weigh less: Eat More, Weigh Less is one of the few diets developed as a result of research. The primary goal of this diet was to reverse heart disease. The basis for this diet is to consume a high-fiber, low-fat, vegetarian diet with limited amounts of dairy foods. The goal is to consume primarily complex carbohydrates vegetables, fruit, and whole grains , low total fat primarily from omega-3 fatty acids and limited in saturated fat, and low sugar. Physical activity and stress management are also emphasized.

The research does support the health benefits of this diet, and you will lose weight if you stick with the plan. The web site provides recipes and detailed information on nutrition , exercise, and stress management. The primary con to this diet is that it can be extremely limited and difficult for some people to follow.

This limitation is because meat is omitted from the plan. Cutting out an entire food group may be too much of a restriction to maintain over the long-term, so some people do best by modifying this diet to allow for a moderate amount of meat.

The high fiber intake may also pose a problem initially. It's best to slowly increase the amount of fiber you consume so your body can get used to it. The goal is always long-term weight loss and maintenance. This diet does have the research to support it, but it may need modifications to make it work for you. Jenny Craig has become best-known for the celebrities who are followed while losing weight on this diet. They explain how easy it is and how delicious the food is, and you see the results as they are happening.

This diet provides you with your foods and snacks to ensure you consume the exact amount of calories your body needs to lose weight. You add fresh produce and dairy. You meet with a consultant on a weekly basis to discuss your progress, and who will assist you with transitioning to your own food when you are ready to do so. Physical activity is emphasized throughout the diet. The primary advantage to this diet is that you will lose weight if you eat what you are given.

Portion-and-calorie-controlled meals are great tools for long-term weight loss and maintenance. They take away the guesswork of how many calories you consume, they can be nutritionally balanced, they are quick and easy to prepare, and they teach you about healthy portion sizes. As with all diets, nothing works for everyone, and nothing works forever.

The celebrity endorsements are great when they work, but the celebrities who regain their weight once they discontinue this plan are proving that this is not the answer for everyone.

Many people prefer to be able to eat food they prepare and do not like the idea of prepackaged foods. The consultants are not professionals in this field.

They undergo a training course but are not trained therapists, registered dietitians, or exercise physiologists, so the advice and support that you receive will be limited to what they have been taught to say. If you are taking any medications or have any health conditions, it is best to work with trained professionals. The NutriSystem Advanced diet is a low glycemic index , high-fiber, and high-protein diet. The prepackaged food is provided for you by ordering online or by calling the toll free number.

This diet does address the three necessary components for successful weight loss and maintenance; diet, physical activity, and behavior. Prepackaged foods can be an effective tool for weight loss. You will be provided with the appropriate number of calories for weight loss without having to worry about counting anything. This will give you the opportunity to learn what appropriate portion sizes are and which foods are necessary for a well-balanced diet based on your specific needs.

The variety of programs based on gender, age, health, and dietary preference is another positive component of this diet. The Mindset Makeover was developed by one of the leading psychologists in the weight loss field, Gary Foster, Ph. It is designed to "help people learn new behaviors when it comes to weight loss and related lifestyle issues. You are given access to this and an online account with community support as part of each of the programs.

Prepackaged foods are not for everyone and typically not something to use forever. They can be very limiting and create the sense of being "on a diet. Most people find that they only want to use this type of a diet for the short-term or for one or two meals per day. Your point allowance is based on your weight, height, gender, age, and activity level. A recent clinical study in the New England Journal of Medicine linked group counseling sessions to weight-loss success.

That explains why Weight Watchers has impressive short-term results. A study in the Annals of Internal Medicine showed participants lost an average of about 5 percent of their body weight 10 pounds in six months. Two years later, they had kept about half the weight off.

To help members stay on track, Weight Watchers encourages them to attend meetings until they've stayed within 2 pounds of their goal weight for six weeks. After that, you get free lifetime membership.

The company says members using its online tools in addition to attending meetings lost 50 percent more weight than those going to meetings alone. Cost to lose 20 pounds: We looked at two plans from eDiets - one that offers support alone, and another with meal delivery. You can choose from among more than 20 diet plans, including ones for diabetics and vegetarians. Online tools let you set goals, plan menus and generate shopping lists.

There's no face-to-face support, but you get support through online message boards and a mentor program that connects newbies with an experienced member. Also, you can reach a registered dietitian or personal trainer by phone at any time.

The optional meal delivery service offers freshly prepared, calorie-controlled meals delivered by FedEx. But telephone support has some evidence in its favor: Yes, it's a bargain for round-the-clock support. For about the same money, other services offer better track records. For the first two weeks, you eat three extremely low-carb meals a day plus mandatory snacks. After that, you gradually add "good carbs," such as fruits and whole grains.

You can customize menus, search a database of more than 1, recipes and get a personalized shopping list. There's online support from staff dieticians and members plus daily motivational emails. Studies have shown that after one year, carb-restricted diets led to greater weight loss and increased heart health than low-fat diets.

However, the advantage disappeared over the long term. How much can you expect to lose? Figure on 8 to 13 pounds during the two- week kick-start phase, then 1 to 2 pounds a week thereafter. It doesn't cost much, but you don't get as much support as with Weight Watchers or eDiets. The Zone diet is mostly meat, fruits, and vegetables.

You eat three meals per day plus two Zone protein-powder snacks. A study of people in the Journal of American Medical Association found the Zone diet helped people achieve modest weight loss after one year, comparable with those on the Atkins , Weight Watchers and Ornish diets, and improved cardiac risk factors.

Premium-priced Jenny Craig lets you order its heart-healthy, nutritionally balanced packaged food by phone and pick it up at a Jenny Craig center or have it delivered through Jenny Direct. You eat three Jenny Craig meals plus a snack per day, and supplement with fruit, vegetables and dairy.

Once a week, you get a weigh-in and pep talk with a consultant - who is not a dietician and who earns commissions from selling you products. There's also round-the-clock phone support. Jenny Craig has a good track record for short-term weight loss up to one year. In a UC San Diego clinical trial of dieters funded by Jenny Craig , Jenny Craig clients lost 11 percent of their initial weight after 12 months, compared with 3 percent weight loss by those who were dieting on their own.

The "doctor-designed" Bistro M. The price is a cut above the competition, too. The plan tries to help you avoid a weight-loss stall out by varying the daily calorie intake between 1, and 1, By eating a little more some days and a little less on others, you'll supposedly prevent your body from becoming used to the same number of calories every day. While no university studies support the theory that varying caloric intake aids weight loss, the high quality of the food and the relatively large portion sizes have been praised by Health magazine, Dr.

Phil and The New York Times. Some plan users have complained of a lack of choices and menu flexibility compared to other plans, but a company spokesman says they offer more than entrees and can make substitutions to accommodate allergies and food preferences.

It's a reasonable price for well-made food with slightly faster average weight loss than with Jenny Craig. This meal-delivery service, endorsed by Marie Osmond and Dan Marino, emphasizes foods with a low glycemic index. The underlying premise is that controlling blood sugar levels leads to weight loss.

The heat-and-eat prepared meals and snacks contain roughly 55 percent "good" carbs, 25 percent protein, and 20 percent fats; like Jenny Craig, you add fruits, vegetables and dairy. Support is available through phone counseling and online chat rooms. There's plenty of research showing that following a diet of 1, to 1, calories a day, such as Nutrisystem, can cause weight loss.

For example, a study by the Obesity Research Center at St. Luke's Roosevelt Hospital in New York found that postmenopausal women who followed a 1,calorie plan for 16 weeks lost an average of 21 pounds.

For a meal-delivery diet system, Nutrisystem is more economical than Jenny Craig. Although today's program is not as stringent as the original liquid fast Medifast launched decades ago, the low-fat, relatively low-carb plan is designed to bring about rapid weight loss by coaxing your body into a "fat-burning state" known as ketosis. The 70 meal replacement choices include shakes, bars, soups, pudding, oatmeal, chili, pretzel sticks, cheese puffs, and scrambled eggs.

If you can stick with it, a diet of 1, calories a day can certainly induce rapid weight loss. A common concern with such low-calorie diets is that you'll quickly regain the weight, but in a small clinical trial recently published in the journal Experimental Biology , after 10 months, only about one in five people regained all the weight they had lost.

Choose this more extreme plan only if quick weight loss is your priority. Within hours of posting a seven-second video of their son learning to walk, Whitney and Adam Dinkel were flooded with messages. The small town of Wenatchee, Washington, is at the center of a virtual gold rush — whether residents like it or not.

Share Tweet Reddit Flipboard Email. Cost per pound of weight loss: It's economical and has a proven track record. In the Zone Delivery Cost: No, unless you're looking for white-glove service.

Weight Watchers Review