
Noom is a psychology-based weight-loss program that focuses on long-term behaviour changes, daily lessons, and food logging to help users achieve their goals. The program uses a colour-coded system to categorize foods based on their nutrient density and calorie content, with green foods being the most nutritious and red foods being the most calorie-dense. Noom also provides access to virtual health coaches, community connections, and personalized workout guides. While Noom has received positive reviews from many nutritionists and customers, it is not suitable for everyone, particularly individuals under 18, those with eating disorders, or those who are underweight.
| Characteristics | Values |
|---|---|
| Main Goal | Weight loss |
| Main Focus | Behaviour changes |
| Type of Program | Lifestyle-based |
| Food Categorisation | Green, Yellow, Orange/Red |
| Food Exclusions | None |
| Food Logging | Yes |
| Weigh-ins | Yes |
| Exercise | Yes |
| Daily Support | Yes |
| Cost | $59 a month, or $129 for a three-month subscription |
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What You'll Learn

Psychology-based approach
Noom is a comprehensive weight-loss platform that integrates psychology, technology, and coaching. It helps individuals build healthier eating habits and achieve sustainable weight loss. The program emphasizes behaviour changes rather than quick fixes. Noom's psychology-based approach focuses on long-term habits and mindset, offering daily lessons, a colour-coded food system, and continued support.
The psychology-based approach of Noom targets the underlying reasons for unhealthy eating habits and helps individuals develop a healthier relationship with food. It addresses emotional eating and how stress, boredom, and social situations affect eating decisions. By understanding the psychological factors influencing food choices, individuals can make more conscious and nutritious decisions.
Noom's colour-coded food system is a key component of its psychology-based approach. Foods are categorized as green, yellow, and red, indicating their nutritional value and suggested portion sizes. Green foods are nutrient-dense and low in calories, making them ideal for consumption in larger quantities. Yellow foods have moderate nutritional value and calorie content, so they should be consumed in moderate amounts. Red foods are calorie-dense and should be consumed in smaller portions. This colour-coding system provides a simple framework for making healthier food choices without strict restrictions.
The daily lessons on the Noom app are another essential aspect of its psychology-based approach. These lessons are based on behavioural science and cognitive behavioural therapy (CBT) techniques. They help individuals understand why they eat the way they do and provide tools to change their behaviour and develop healthier habits. The lessons include quizzes, simple activities, and tips to promote a mindset shift towards a healthier lifestyle.
Noom's psychology-based approach also emphasizes daily support and interaction. The app provides regular feedback and motivation, which research suggests may promote more significant weight loss. Noom offers virtual health coaches who provide guidance and support to help individuals stay on track with their diet and exercise plans. This ongoing support is a key differentiator from other weight loss programs, where consultations may occur less frequently.
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Calorie-dense foods
Noom is a psychology-based weight-loss program that combines diet and exercise with expert support. It uses an algorithm to estimate your daily calorie needs based on your sex, age, height, weight, and lifestyle. Noom encourages food logging and categorises foods into green, yellow, and orange categories. The program also encourages regular exercise by setting daily step goals and providing a generic workout guide.
- Nuts and nut butter: Just two handfuls of nuts per day can quickly add hundreds of calories to your diet. Nut butter can be added to smoothies, yogurts, and crackers to increase their calorie content.
- Red meats: Beef and pork are effective muscle-building foods and are calorie-dense.
- Cheese: Cheese is a source of protein and is rich in fats. Adding cheese to meals can boost both calories and flavour.
- Rice: Rice is a calorie-dense food that can help you eat more, especially if you don't feel too hungry or get full quickly. It can be easily combined with proteins and fats to create varied meals.
- Dark chocolate: Dark chocolate with at least 70% cacao provides antioxidants and health benefits. It has a high calorie density, meaning you get calories without eating much.
- Avocado: Avocados are calorie-dense and also provide healthy fats and nutrients.
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Behavioural changes
Noom is a psychology-based weight loss program that focuses on behavioural changes. It aims to help users develop a healthier relationship with food and make long-term lifestyle changes.
Noom's behavioural change program is based on the idea that the best way to achieve weight loss and optimal health is by pairing behavioural changes with the right medication when needed. The program uses a combination of psychology, technology, and coaching to help individuals build healthier eating habits and achieve sustainable weight loss.
One of the key features of Noom is its focus on daily interaction and support. The program provides daily lessons, tips, and reminders that are intended to help users think differently about food and how they eat. These lessons are based on behavioural science and cognitive behavioural therapy (CBT) techniques to help users change their behaviour and build healthier habits. Noom also provides access to a community of other users, as well as live health coaching and on-demand workouts.
The Noom diet separates foods into three categories: green, yellow, and red (or orange). Green foods are the most nutritious and should make up the majority of your diet, while yellow foods are slightly less nutritious and should be eaten in moderation. Red (or orange) foods are the most calorie-dense and should be eaten in limited quantities. However, Noom does not exclude any foods and instead uses the colour system as a portion guide. The program also encourages food logging and weekly weigh-ins, which have been associated with weight loss and long-term weight loss maintenance.
Noom also addresses emotional eating and how stress, boredom, and social eating affect eating decisions. It helps users identify what has stopped them from losing weight in the past and make real behavioural changes to build a healthier lifestyle. Noom encourages users to set goals and evaluate and change behaviours that may sabotage their progress.
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Weight loss
Noom is a comprehensive weight-loss platform that combines psychology, technology, and coaching to help individuals build healthier eating habits and achieve sustainable weight loss. It is a lifestyle-based approach that helps users identify what has stopped them from losing weight, so they can make real changes and develop a healthier mindset. Noom focuses on long-term behaviour changes, calling itself a lifestyle rather than a diet.
The Noom diet is a psychology-based program that separates foods into three categories: green, yellow, and red. Green foods are the best option as they are the least calorie-dense and have the highest number of nutrients. These include vegetables and whole grains, such as spinach, apples, sweet potatoes, and brown rice. Yellow foods are slightly less nutritious and higher in calories, and include starches, lean meats, and dairy products. Red foods are the most calorie-dense and should be consumed in limited amounts. The colour system acts as a portion guide, with red foods not being excluded but rather indicating foods that are higher in calories and meant to be eaten in smaller amounts.
Noom encourages food logging and weekly weigh-ins, which are associated with weight loss and long-term weight loss maintenance. It also encourages regular exercise by setting daily step goals and providing a generic workout guide, with users able to log their physical activity in the app. Noom also addresses emotional eating and how stress and boredom affect eating decisions. The app provides daily support and feedback, which can promote more significant weight loss.
Noom is not suitable for everyone, including those under 18, who are pregnant, have an eating disorder, or are underweight. It is important to note that individual results may vary, as some users have reported losing a fraction of the predicted weight, while others have lost a significant amount.
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Health coaching
Noom is a comprehensive weight-loss platform that integrates psychology, technology, and coaching to help individuals build healthier eating habits and achieve sustainable weight loss. It is a lifestyle-based approach that helps users identify what has stopped them from losing weight so that they can make real changes. Noom focuses on behavioural changes, calling itself a lifestyle rather than a diet. It uses an algorithm to estimate your daily calorie needs based on your sex, age, height, weight, and answers to a series of lifestyle questions.
Noom's health coaching involves instant access to AI and human-led coaching via chat. The coaches, many of whom are board-certified health professionals, are expertly trained in the Noom method. They offer personalized guidance, answer questions, and help users stay on track with their goals. The guidance from Noom's coaches can make it easier for users to stay on track with their diets. Noom users can message their health coach whenever they need advice.
Noom encourages food logging and weekly weigh-ins, which are associated with weight loss and long-term weight loss maintenance. It encourages regular exercise by setting daily step goals and providing a generic workout guide. Users can log their physical activity in the app, which provides an extensive list of exercises to choose from. Noom also addresses emotional eating and how stress and boredom affect eating decisions. It addresses social eating and allows users to plan for parties, holidays, vacations, and eating out.
Noom's curriculum stands out with its psychology-based approach, focusing not just on what you eat but why. By targeting long-term habits and mindsets, Noom offers daily lessons, a colour-coded food system, and continued support. The lessons are based on behavioural science and use cognitive behavioural therapy (CBT) to help users change their behaviour and build healthier habits. Noom's daily support is one of its biggest advantages.
Noom is not for everyone. You cannot use the service if you are under 18 years old, pregnant, have an eating disorder, or are underweight.
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Frequently asked questions
The Noom diet is a psychology-based program that separates food into three categories: green, yellow, and red. Green foods are the most nutritious and least caloric, red foods are the least nutritious and most caloric, and yellow foods fall in between. The diet is based on the belief of balance and encourages healthy, long-term habits.
The Noom diet consists of evidence-based information, trained cognitive behaviour coaches, simple tracking tools, and a user-friendly interface. It is a digital weight loss program that matches users with certified health coaches. Noom encourages food logging, daily exercise, and weekly weigh-ins.
The Noom diet is for people who want to lose weight and keep it off. It is not for people under 18 years old, pregnant women, those with eating disorders, or those who are underweight. Noom can be suitable for people with medical conditions and various dietary needs.











































