You watch what you eat because your body simply can't just take in whatever you crave.
Some of us have trouble with fresh fruits and vegetables, some with red meat, some with spicy food, etc.
It just depends on what you can tolerate.
Also, there is much research done on microbes in your gut that can really hurt you and feed off of specific kinds of foods. Certain components in what you eat help maintain their health and/or are beneficial to their equivalent of a cell wall i.e. capsule.
And then there is the simple fact of life that everyone needs to watch what they eat if they want to be healthy. We just have to a little bit more so because we tend to be a little more sensitive.
And don't even get me started on the chemicals, additives, pesticides, etc. in 'normal' food virtually everyone buys and consumes.
And on a side note:
I just wanted to add that it IS a digestive order. There aren't many things that have a closer connection and relationship with our digestive system than the food we eat so..I'm sure you can see the correlation and importance here..
20 years old, Diagnosed with moderate to severe Crohn's and Colitis in May of 2008.
Prednisone 10 mg, pentasa 2 pills 4x a day, bentyl as needed, omeprazole in the morning, prenatal multivitamin, humira every other week, and Align probiotics given to me by my GI.
Surgery for ectopic pregnancy most likely the result of severe Crohn's inflammation in July of 2008.
Diet almost completely without refined sugars, wheat, flour, gluten, high lactose dairy, and/or junk food in general.
Learning how to live again.
"He who has a why to live for can bear with almost any how."