I am confused about what the green, yellow, and orange food color categories mean on Noom. Can Noom users share practical information about it?

The color scheme divides all foods into orange, yellow, and green categories based on calorie density:

Green foods have the lowest calorie density and/or the highest concentration of beneficial nutrients. Green foods (such as vegetables or whole grains) should make up the majority of your diet.

Yellow foods (such as lean meats and grains) contain more calories and/or fewer good nutrients per serving than green foods, and should be consumed in moderation.

Orange foods (such as red meat and desserts) are the most calorie-dense and/or contain the fewest healthful components, thus they should be consumed in moderation.

Feel welcome to add any additional information or perspectives in the comments