# Personalised nutrition

We use the Mifflin-St Jeor equation to calculate personalised nutrition calorie targets. Your programs can optionally use this to personalise nutrition targets for your customers by having them complete a "BMR" quiz during onboarding.

The BMR quiz takes the following information:

* Biological gender
* Age
* Height
* Current weight
* Current activity level
* Target weight
* Duration to reach target weight

We then use the results of this to calculate personalised calorie totals, and from this we can calculate any %BMR metrics you have defined for macros in your program, e.g. Carbs, Protein, Fat.

### How do I activate this for a program?

In Smorg Studio, go to Programs and select your Program, and from the plus navigation click "Edit nutrition constraints", and set the Personalised Meal Scaling option.

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### Can customers change these answers?

Customers can changes these answers in their Profile -> Personal Information settings in the end user app.

### Can customers change the calorie totals?

Customers can enter their own calorie targets in their Profile -> Personal Information settings in the end user app.


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