A keto diet is usually very safe. However, in the following five situations, you may need extra preparation or consultation with your doctor:

  • Are you on medication for diabetes (e.g., insulin)?
  • Are you on medication for high blood pressure?
  • Are you breastfeeding?
  • Do you have any thyroid problems?
  • Do you have any liver problems?

If you’re not in one of these situations, you’ll likely do fine on a keto diet without needing any special modifications.