
Noom is a digital weight loss program that combines multiple approaches to teach people how to make healthier choices. It is completed through the Noom app, which matches users with a certified health coach. The app provides a suggested calorie goal for weight loss and teaches users how to choose the best foods through a unique colour-coding system. Noom divides food into three categories: red, green, or yellow. While Noom does involve calorie counting, it is not a typical calorie-tracking program.
| Characteristics | Values |
|---|---|
| Calorie counting | Yes, but with a focus on calorie density, i.e. foods with few calories for the volume you eat |
| Suggested calorie goal | Previously 1,200 calories, now a minimum of 1,310 to 1,540 |
| Calorie tracking method | Food database of over 150,000 items, barcode scanner, or manual input |
| Food categorisation | Green, yellow, and red categories based on nutrient density and calories |
| Customisation | Users can adjust weight loss goals and calorie limits |
| Additional features | Tools to track progress, exercise regimen, and body weight |
| Health coaches | Available, but not necessarily certified nutritionists or registered dietitians |
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What You'll Learn

Noom's colour-coded system categorises food by calorie density
Noom is a digital weight loss program that provides users with a suggested calorie goal for weight loss. It employs a unique colour-coded system to teach users how to choose the best foods. The colour-coding categorises food by calorie density, indicating the number of calories relative to the weight of the food.
The Noom system uses three categories: red, yellow, and green. Green-labelled foods typically have the highest nutrient content and the fewest calories, while red-labelled foods have more calories and fewer nutrients. Yellow-labelled foods fall in between. Noom encourages users to eat more yellow and green foods and limit their consumption of red foods. This approach helps users understand the caloric density of foods and make informed choices.
The colour-coded system simplifies food choices, as it is easier for some people to associate a food with a colour rather than counting calories or macros. However, it is important to note that no system is perfect, and some nutrient-dense foods may be categorised as orange or yellow. Additionally, the colour approach may not work for everyone and could potentially lead to disordered eating habits or an unhealthy relationship with food. For example, almond butter is labelled as a red food due to its high-calorie content, but it is a healthy food when consumed in moderation.
Users can track their food intake by searching the Noom food database of over 150,000 items or scanning barcodes on packaged foods. They can also log their meals manually, which is useful for those who cook homemade recipes. Noom provides tools for meal tracking, exercise regimen setup, and body weight monitoring. The app also offers features like the Noom 360 Body Scan, Noom Success Kit, Noom Vibe, and Noom Mood.
While Noom's colour-coded system categorises food by calorie density, it is important to remember that losing weight involves more than just counting calories. Noom aims to educate users on choosing the right foods for sustained weight loss and a healthier lifestyle.
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Noom provides a suggested calorie goal for weight loss
Noom is a digital weight-loss program that provides a suggested calorie goal for weight loss. It uses a colour-coded system to categorise foods based on their calorie density, with green, yellow, and orange or red categories. Calorie density refers to the number of calories in a food relative to its weight or volume. Green-labelled foods on the Noom diet are encouraged and typically contain the most nutrients and the fewest calories, whereas red-labelled foods have more calories and fewer nutrients. Yellow-labelled foods fall in between. Noom's approach to nutrition is based on this idea of calorie density, encouraging people to eat foods with low calorie density, such as leafy greens.
The app provides a daily calorie goal and encourages users to track their food and stay within a certain calorie range. Noom previously set a default calorie recommendation of 1,200 calories per day for many users, which some dietitians criticised as being too low and potentially causing side effects such as fatigue, mood swings, and disrupted metabolism. Noom has since updated its approach, increasing the minimum daily calorie goals to 1,310 for women and 1,540 for men. The app's default setting is designed for users to lose about two pounds per week.
Noom does not require strict calorie counting, and its colour-coded system simplifies food choices. However, users can still choose to track their daily caloric intake using Noom's food database of over 150,000 items or by manually logging their meals. The app also provides tools to track progress, such as weight and activity levels.
Noom's suggested calorie goals and tracking features are part of its holistic approach to weight loss, aiming to help users develop healthy habits and make informed food choices. While some may find the suggested calorie goals restrictive, Noom allows users to adjust their weight loss goals and calorie limits accordingly.
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Noom's calorie recommendations have been criticised as too low
Noom is a digital weight loss program that combines multiple approaches and teaches users how to make healthier choices. The app provides a suggested calorie goal for weight loss, with a unique colour-coding system that teaches users how to choose the best foods. The colour-coding system categorises food as green, yellow, or red. Green-labelled foods usually contain the most nutrients and the least amount of calories, while red-labelled foods have more calories and fewer nutrients. Yellow-labelled foods fall in between. Noom's nutrition advice is based on the idea of calorie density, encouraging people to eat foods that have few calories for the volume eaten, like leafy greens.
Noom's 1,200-calorie recommendation is just a suggestion, and users can adjust their weight loss goals, which will change their calorie limits. Noom has since updated its approach to calories, increasing the minimum daily calorie goals by 10%. The new minimum is 1,310 for women and 1,540 for men. The app's default setting is intended for users to lose about two pounds a week.
While Noom has been criticised for setting a low calorie goal, it is not a typical fad diet. Instead, it takes a holistic approach, guaranteeing lifelong weight management through renewed healthy habits. Noom has been scientifically studied and shown to help people lose weight and keep it off. In one study of almost 36,000 people, 80% reported weight loss while using the app for a median of 267 days.
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Noom teaches users how to choose the right foods to lose weight
Noom is a digital weight-loss program that can be accessed through an app. The app provides a suggested calorie goal for weight loss, which is calculated based on the user's age, weight, health status, and fitness goals. It also takes into account the user's current diet, activity levels, and any habits or behaviours that may impact their health.
The app also provides a food database of over 150,000 items, allowing users to search for specific foods and track their daily caloric intake. Additionally, Noom offers a diabetes prevention program that has been recognised by the Centers for Disease Control and Prevention (CDC) for its effectiveness.
While Noom has been shown to help people lose weight, some dietitians have criticised its daily calorie guides as being too low, which may put users at risk of undereating and associated side effects such as fatigue, mood swings, and disrupted metabolism. However, Noom has since updated its approach to calories, increasing the minimum daily calorie goals for women and men.
Overall, Noom provides a holistic approach to weight loss, empowering users to make healthier food choices and develop positive habits for lifelong weight management.
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Noom's health coaches are not all certified nutritionists
Noom is a digital weight loss program that combines multiple approaches and teaches people how to make healthier choices. It provides a suggested calorie goal for weight loss and teaches users how to choose the best foods through a unique colour-coding system. Noom's nutrition advice is based on the idea of calorie density, which encourages people to eat foods that have few calories for the volume consumed, like leafy greens.
Noom matches users with a certified health coach. While all Noom health coaches are approved by the National Consortium for Credentialing Health and Wellness Coaches (NCCHWC), not all of them are certified nutritionists, registered dietitians, personal trainers, doctors, or any other credentialed health professional outside of Noom's independent training program. Noom's health coach training platform, "Noomiversity", is approved by the National Board for Health & Wellness Coaches (NBHWC).
The colour-coding system has been criticised for potentially causing problems. While the colour-labeling approach to food selection works for some people, for others, it could result in disordered eating habits or an unhealthy relationship with food. For example, almond butter is labelled as a red food because of its high-calorie content, but almond butter is a perfectly healthy food when eaten in moderation.
Noom's daily calorie guides have been criticised by dietitians as being too low, putting users at risk of serious side effects. Symptoms of undereating can include fatigue, mood swings, brain fog, and disrupted metabolism. Noom previously set a default recommendation of 1,200 calories a day for many users, regardless of body type or weight loss goal. While Noom now suggests a minimum of 1,310 to 1,540, aiming for too low a calorie goal could lead to side effects, according to dietitians.
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Frequently asked questions
Yes, Noom is a weight-loss app that encourages users to track their food and stay within a certain calorie range. Noom provides a suggested calorie goal for weight loss, which has been criticised by dietitians as being too low.
Noom categorises food using a colour-coded system. Green-labelled foods contain the most nutrients and the least amount of calories, while red-labelled foods have more calories and fewer nutrients. Yellow-labelled foods fall in between.
Dietitians have criticised Noom's low-calorie recommendations, stating that they can cause side effects such as fatigue, mood swings, brain fog, and disrupted metabolism. Some users have also found the calorie goal to be severely restrictive and limiting. Additionally, critics argue that the colour-coded system may lead to an unhealthy relationship with food, as some healthy foods are labelled as red.











































