Last updated: 7 May 2026
Articles on whatisketo.co.uk are for general information only. They are not a substitute for professional medical advice, diagnosis, or treatment.
Always consult a qualified professional
Before starting a ketogenic diet — or making any significant change to how you eat — speak to your GP or a registered dietitian. This is particularly important if you:
- have type 1 or type 2 diabetes;
- are pregnant, planning a pregnancy, or breastfeeding;
- have kidney, liver, or gallbladder disease;
- take medication for blood pressure, cholesterol, or blood glucose;
- have a history of disordered eating;
- are under 18 or over 70.
What we are not
We are not doctors, dietitians, or NHS-affiliated. The articles on this site are written and reviewed by experienced nutrition writers and informed by peer-reviewed research, but they cannot account for your specific medical situation.
If something goes wrong
If you experience worrying symptoms while changing your diet — chest pain, severe dizziness, confusion, persistent vomiting, fainting — call NHS 111, your GP, or 999 in an emergency. Do not wait.
Studies and citations
Where we cite published research, we link to the original paper. Studies have limitations and may not apply to every reader. We summarise findings carefully but always recommend reading the source if a topic affects your decisions.