Some groups of people should be more cautious or even avoid doing intermittent fasting.
Children and teenagers
Children and teens who are not fully mature with bodies that are still growing and have many needs in nutrition intake. Intermittent fasting is not recommended for them.
Type 1 and type 2 diabetes
People with diabetes should monitor their blood glucose to make sure it remains at a safe level. Intermittent fasting requires a different eating pattern from the typical life.
Basically, discuss your plans with your doctor to make sure it is right for you.
Pregnant, breastfeeding, and trying to conceive
Not recommended for women who are pregnant and breastfeeding. No mothers would have wanted to do anything that could risk the health of their babies.
If you’re trying to conceive and are concerned, check with your doctor or ob-gyn for advice.
Eating disorders
It’s important to note that fasting itself will not cause an eating disorder but that someone with an eating disorder may find that fasting triggers the disordered behavior.