Alessio Fasano is a special doctor who helps people who have problems with their stomach or intestines. Your stomach and intestines are part of your body that help you digest, or break down, the food you eat. Sometimes, people can't eat certain foods because their stomach or intestines don't work like they should.
Dr. Fasano helps these people by finding out what foods they can and can't eat. He also helps them feel better if they have a stomachache or other problems with their stomachs. He does lots of tests and studies to learn more about how the stomach and intestines work, so he can help more people in the future.
Dr. Fasano is a very smart man who has studied a lot about the human body and how it works. He went to school for many years to become a doctor. There are only a few doctors in the world who are as good as Dr. Fasano at helping people with stomach and intestine problems.