Not medical advice
The information on My Nice Flat Belly, including our articles, tools, calculators, and printable resources, is for general education only. It is not medical advice, and it does not diagnose, treat, cure, or prevent any condition.
Using this site does not create a doctor-patient or any other professional relationship. Always talk to a qualified healthcare professional about your own health, medications, diet, exercise, or any change to your routine, and before acting on anything you read here.
If you need urgent help
Do not use this website in an emergency. If you think you may have a medical emergency, contact your local emergency services immediately.
About our tools
Our calculators, such as the waist-to-height ratio calculator and the BMI and waist comparison, give general screening estimates. They are not clinical tests. Results can be affected by how you measure, your body shape, muscle mass, age, and other factors, and they do not tell you whether you have or do not have a health problem.
Our tools are designed for adults. Do not use them if you are pregnant, if you have been diagnosed with an eating disorder or think you may have one, if you have a condition that affects your height, or for children and teenagers. If you are unsure, ask a healthcare professional.
Accuracy
We try to base our content on reliable public-health sources and to keep it up to date, but health guidance changes and we cannot guarantee that every page is complete, current or free of errors. Check the last-reviewed date and the sources on each page.
Links to other websites
Our pages link to other websites, such as the NHS and NIH. We do not control those sites and are not responsible for their content.
Your responsibility
You are responsible for how you use the information on this site. To the extent allowed by law, we are not liable for any loss or harm that results from using it. See our terms and conditions for more.
Last updated: October 13, 2026.