Why we ask for "Assigned sex" in the calorie calculator
When using the Calorie Calculator in Workout Titan, you'll notice that we ask for your assigned sex at birth. This information helps us provide more accurate calorie estimates based on biological differences that can impact your metabolism, body composition, and energy needs.
What does "Assigned sex" mean?
Assigned sex refers to the classification of a person as male or female based on physical characteristics (such as anatomy or chromosomes) at birth. It is usually recorded on your birth certificate and is different from gender identity, which relates to how you personally identify (such as male, female, non-binary, etc.).
Why It Matters for Fitness and Nutrition
Your assigned sex can influence several physiological factors relevant to calorie needs, including:
- Basal metabolic rate (BMR) – the number of calories your body burns at rest
- Muscle mass vs. fat mass – which affects how many calories you burn during activity
- Hormonal differences – which can influence energy balance and nutrient needs
These factors are part of the equations used in calorie and macro calculations, so entering your assigned sex helps improve accuracy.
What if you're transgender or non-binary?
We understand that assigned sex doesn't always reflect your gender identity. If you're transgender or non-binary, and unsure which option to choose, consider the following guidance:
- If you are undergoing or have completed hormone replacement therapy (HRT), your metabolism may more closely resemble that of your affirmed gender. You can choose the option that reflects your current physiology for more accurate results.
- If you prefer a tailored approach, you can always consult a healthcare provider or use our Custom Goals feature to override the defaults and fine-tune your calorie targets.
We're here to support everyone
At Workout Titan, we strive to make our tools inclusive and respectful of all identities. If you have questions or feedback about this topic or how we can improve our experience, contact our support team via email.