A keto diet is usually very safe. However, in the following three 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?
If you’re not in one of these situations, you’ll likely do fine on a keto diet, without needing any special modifications.
However, if you’re aware of any physical health problems, then special consideration should be made when planning to start a keto diet.