
The 17-day diet is a weight loss program developed by Dr. Mike Moreno, a San Diego family medicine doctor. The diet works in four 17-day cycles: Accelerate, Activate, Achieve, and Arrive. The first three cycles are 17 days long, while the Arrive cycle is meant to be followed for life. The diet involves changing food combinations and calorie intake every 17 days, which is claimed to prevent boredom and keep the metabolism guessing to speed up weight loss and avoid plateaus. While the 17-day diet is touted as a quick way to lose weight and build healthy eating habits, there are some potential health risks to consider. This includes the risk of nutritional deficiencies if meals are not properly balanced, binge eating, and the diet's promotion of more exercise to burn off additional calories, which is a major risk factor for eating disorders.
| Characteristics | Values |
|---|---|
| Health Risks | Lack of nutrition, binge-eating, major risk factor for eating disorders |
| Food Restrictions | Sugars, fats, refined carbohydrates, grains, fruit, dairy, alcohol, salty foods, fried foods |
| Food Recommendations | High-fiber foods, lean protein, vegetables, fruits, probiotic foods, whole grains, healthy fats |
| Exercise | Starts with 17 minutes of moderate activity, increases to 40-60 minutes of aerobic activity most days |
| Weight Loss Claims | 10-17 pounds in 17 days |
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What You'll Learn

Lack of nutrition
The 17-Day Diet is a weight-loss program created by Dr. Mike Moreno. It claims to help people lose 10-15 pounds in 17 days by changing food combinations and calorie intake every 17 days for four cycles. The diet is divided into four phases or "cycles": Accelerate, Activate, Achieve, and Arrive. The first three cycles last 17 days each, while the Arrive cycle is meant to be followed for life.
The first cycle, Accelerate, is the most restrictive, with a high-protein, low-fat, no-carb emphasis. It eliminates sugar, grains, fruit, alcohol, and most dairy foods. The second cycle, Activate, continues with the elimination of certain foods while adding back in more starchy vegetables and proteins with a higher fat content. The third cycle, Achieve, introduces even more calorie-rich options. The fourth and final cycle, Arrive, allows dieters to choose any meal plan from the previous three stages and follow them from Monday breakfast to Friday lunch.
While the 17-Day Diet has been touted as an effective way to lose weight quickly and form better eating habits, there are some concerns about a lack of nutrition, especially in the first cycle. During the Accelerate cycle, the diet restricts a lot of food groups, which may result in a lack of adequate nutrition. The diet eliminates whole grains and fruits, which are important sources of dietary fiber. Research shows that getting enough fiber is necessary for maintaining digestive health, reducing inflammation, and preventing colon cancer. Therefore, the lack of fiber in the first cycle of the 17-Day Diet may be a concern for those following the plan.
Additionally, the diet may not provide enough calories in the first cycle, which could lead to feelings of hunger and deprivation. While the diet does not specify the exact number of calories allowed, it is said to start at 1,200 calories, which may not be sufficient for everyone, especially those with higher energy requirements.
Furthermore, the 17-Day Diet may not provide adequate nutrition for certain individuals with specific health needs. For example, the diet includes a high amount of protein, which may be unsuitable for those with kidney disease. It is always recommended to consult with a healthcare professional or registered dietitian before starting any new diet plan, especially if you have underlying health conditions.
In summary, while the 17-Day Diet may aid in weight loss, it is important to consider the potential lack of nutrition, especially in the first cycle. As the diet progresses, it does introduce more food options and increases calorie intake, which may help alleviate some of the nutritional concerns. However, it is crucial to ensure that you are meeting your individual nutritional needs and making any necessary adjustments or substitutions to fit your specific health requirements.
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Binge-eating
Binge eating is a recurrent behaviour, usually occurring at least once a week for three months. It is characterised by consuming significantly more calories in one sitting or meal, generally in the range of 1,500 to 3,000 calories. This level of overeating is classified as an eating disorder when accompanied by a feeling of loss of control.
Binge eating can be caused by several factors, including restrictive dieting, high stress, and hormonal imbalances. The 17-Day Diet is a weight-loss program that involves a restrictive first phase, eliminating sugar, grains, fruit, and most dairy foods. The diet is divided into four cycles, with the first three lasting 17 days each and the fourth cycle meant to be followed for life. The diet progressively increases calorie intake and introduces more calorie-rich options with each cycle.
If you are struggling with binge eating while on the 17-Day Diet, here are some strategies to help you:
- Meal planning and sticking to a regular eating pattern have been linked to fewer episodes of binge eating.
- Prioritize whole, unprocessed foods such as fruits, vegetables, and grains, and moderate your intake of treats rather than excluding them from your diet. Skipping meals can contribute to cravings and increase the risk of overeating.
- Drinking plenty of water throughout the day can help curb cravings and prevent overeating.
- Practicing mindfulness meditation has been shown to decrease the incidence of binge eating and emotional eating.
- Consult with a registered dietitian or a healthcare provider, especially if you have an underlying health condition. They can help you address any stress or emotional triggers that may be contributing to binge eating.
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Risk factor for eating disorders
The 17-Day Diet is a weight loss program created by Dr. Mike Moreno, which claims to help lose 10–12 pounds (4.5–5.4 kg) in only 17 days. The diet involves changing food combinations and calorie intake every 17 days across four cycles: Accelerate, Activate, Achieve, and Arrive. While the 17-Day Diet does not present common health risks, it lacks dietary fiber during the first cycle, which is necessary for maintaining digestive health.
Now, let's discuss risk factors for eating disorders, specifically in the context of the 17-Day Diet. It's important to note that eating disorders are complex conditions influenced by various factors, and the presence of these risk factors does not necessarily indicate that an individual will develop an eating disorder.
Parental Influence and Family Dynamics:
Research has found that parental communication about food and parental eating behaviours can significantly impact their children's risk of developing eating disorders. Children exposed to parental dietary restriction and disordered eating behaviours are more likely to exhibit disordered eating patterns. Maternal distress and dieting, coupled with poor family communication, have also been linked to a long-term risk for restrictive eating disorders. On the other hand, parental conversations focused on healthy eating rather than dieting or weight can be protective factors.
Mental Health Conditions:
Co-occurring mental health disorders, such as depression (MDD), anxiety (GAD), and social anxiety disorder (SAD), have been associated with an increased risk of developing eating disorders. Studies suggest a bidirectional relationship, where these mental health conditions can be risk factors for disordered eating, and disordered eating can, in turn, exacerbate these conditions.
Individual Factors:
Individual factors, such as self-esteem issues and heightened stress reactivity, particularly in response to social conflict, can contribute to the development of eating disorders. Additionally, early negative experiences with food and pressure to eat, coupled with high disgust sensitivity, may also play a role in the onset of eating disorders.
It is important to consult with a healthcare provider or registered dietitian before starting any diet, especially if you have underlying health conditions or a history of eating disorders.
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Too much protein for those with kidney disease
The 17-Day Diet is a weight-loss program created by Dr. Mike Moreno, which claims to help individuals lose 10-15 pounds in just 17 days. The diet is divided into four cycles: Accelerate, Activate, Achieve, and Arrive. The first three cycles last 17 days each, while the Arrive cycle is meant to be followed for life. The diet involves changing food combinations and calorie intake every 17 days, which is claimed to boost metabolism and burn body fat. The diet includes three meals per day plus snacks and emphasizes lean protein, antioxidant-rich produce, probiotics, and good fats.
One of the potential health risks associated with the 17-Day Diet is that it may include too much protein for individuals with kidney disease. While protein is an essential nutrient that helps the body grow, build muscles, heal, and stay healthy, excessive protein intake can be harmful for those with kidney disease.
Kidneys play a crucial role in filtering waste products created by the foods we eat, helping to maintain the right balance of nutrients and minerals in the blood and body. When the body uses protein, it produces waste products that the kidneys must filter. In individuals with kidney disease, the kidneys may not be able to effectively remove all the waste from the protein in the diet. This can lead to a build-up of protein waste in the blood, causing nausea, loss of appetite, weakness, and taste changes. The increased workload on the kidneys can cause them to wear out faster, potentially accelerating the progression of kidney disease.
It is important for individuals with kidney disease to consult with a healthcare professional or a registered dietitian to determine their specific protein needs. A kidney-friendly eating plan can help manage kidney disease and slow down damage to the kidneys by limiting certain minerals and fluids, ensuring the right balance of nutrients, and adjusting the amount and type of protein in the diet. For example, individuals with kidney disease may need to eat more lean proteins, which are high in protein and low in fat, such as skinless chicken and turkey.
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May be hard to stick to
The 17-day diet may be hard to stick to because of its restrictive nature, particularly in the first cycle. The first cycle is the most restrictive, with a high-protein, low-fat, and no-carb approach. It involves minimizing starchy vegetables and fruits, and eliminating fats, sugars, and most carbohydrates. The diet recommends eating unlimited protein and vegetables from a specified list of foods, but bans most carb-rich foods. Fruits are allowed, but only before 2 pm, as it is claimed that it is harder to burn carbs later in the day. Alcohol is also banned during this cycle.
The second cycle, or 'Activate' phase, is a continuation of the first, but with some new food options. While the rules of the first cycle still apply, including no carbs after 2 pm, starchy vegetables and proteins with a higher fat content, such as pink fish or red meat, are now allowed.
The third cycle is similar to the second, but with an even wider variety of carb sources allowed, including breads, pastas, cereals, and fresh fruits and vegetables.
The fourth cycle, 'Arrive', is intended to be followed for life. However, because of its restrictive nature, many people may find it hard to stick to this cycle long-term.
The 17-day diet also involves exercise, which may be a reason why some people find it hard to stick to. The exercise component starts slowly, with just 17 minutes a day of moderate activity, but quickly increases to 40-60 minutes of aerobic activity most days. This may be a challenge for some people, particularly those with heart disease or other medical conditions.
Overall, the 17-day diet may be hard to stick to because of its restrictive food choices and increasing exercise requirements.
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Frequently asked questions
The 17-day diet is a restrictive diet that can lead to nutritional deficiencies if not properly managed. It may also encourage binge eating and is a risk factor for eating disorders due to its restrictive nature and promotion of exercise to burn off extra calories. People with kidney disease should be cautious of the high protein content, and those with heart disease or other medical conditions should consult a doctor before starting this diet.
The 17-day diet can lead to rapid weight loss and help build healthy eating habits. It is high in fibre and provides tips for eating out and during holidays, which can be challenging for people on a diet. It also emphasises the benefits of cutting back on refined carbohydrates and added sugars, which can reduce the risk of chronic diseases.
The 17-day diet is divided into four cycles, with the first cycle being the most restrictive. During this cycle, you eliminate fats, sugars, alcohol, and most carbohydrates. The diet also encourages the consumption of probiotic foods like yoghurt and lean proteins.











































