Hi. Would people with anemia and thalassemia experience more fatigue during diets that people without it? For example a ketogenic diet?

Address issues . If you have thalassemia minor and a very mild anemia as a result, it is a non-problem unless you marry someone else with it. If you have a second cause of significant anemia, it needs to be addressed. Unless the ketogenic diet is prescribed for epilepsy, please reconsider. These fad diets are likely to make you feel unwell and are less effective than developing a fitness habit.