Calorie Calculator

Estimate your daily maintenance calories and a gentle deficit range.

Units
1. Sex

Used in the formula, which is based on sex at birth.

years
lb
ft
in

Track every dose in the Nudge app

Log your shots, see your medication level, and follow every phase of your GLP-1 journey in one calm place.

Download on the App Store
Get it on Google Play
Nudge progress screen mockup
Nudge home screen mockup
Nudge phase screen mockup

How it works

How we estimate your calories

We use the Mifflin-St Jeor equation, one of the most accurate everyday estimates.

1

Resting metabolism

We estimate the calories your body burns at rest from your age, sex, height and weight.

2

Activity level

We multiply that by an activity factor to estimate your daily maintenance calories.

3

A gentle deficit

We suggest 250–500 calories below maintenance, never below 1,200 (women) or 1,500 (men).

Tips

Eating well on a GLP-1

A smaller appetite doesn’t have to mean less nutrition.

A smaller appetite doesn’t have to mean less nutrition.

Protein first

Prioritize protein at each meal to help protect muscle as you lose weight.

Don’t under-eat

Eating too little can cause fatigue, muscle loss and nutrient gaps.

Small, frequent meals

Smaller portions spread through the day can feel better if you get full fast.

Nutrient-dense choices

Vegetables, fruit, whole grains and lean proteins give more nutrition per bite.

Nudge

© 2026 Elys Health Technology Ltd. All rights reserved.
Nudge is owned and operated by Elys Health Technology Ltd.

NUDGE

NUDGE

Nudge
Nudge is a wellness and tracking tool and does not provide medical advice. Always consult your healthcare provider before making medical decisions.
Nudge is a wellness and tracking tool and does not provide medical advice. Always consult your healthcare provider before making medical decisions.