Our apps use BMI as a screening tool for calculating healthy weight ranges. According to the Centers for Disease Control and Prevention (CDC), BMI can be used as a screening tool but requires assessment by a healthcare provider to determine actual health risks.
BMI is not a perfect screening tool; some people may be healthy and not underweight even with BMI less than 18.5. Unfortunately, an app is not a doctor and cannot reliably assess an individual's situation based on limited information. Therefore, our apps must stay on the safe side and only support weight targets that are not considered underweight based on BMI.
If your healthcare provider has assessed your situation and provided personalized guidance for body weight and calorie intake, you can override our app’s calculations and set a custom calorie budget on the My Weight Goal & Plan screen. This customization helps you achieve your goals safely.