avoid things high in sugar and make sure to load up on carbs(such as pastas) the night before a race but mostly just make sure to try to avoid junk foods and sugars because they won't give you energy for long periods of times which is highly critical in distance running
You should try to avoid sweet foods such as chocolate
You should avoid high calorie foods because they will make you gain weight. You should avoid acidic foods because they will give you indigestion.
Any foods that have a high sugar level content or junk foods are the foods that you should avoid. Have fresh fruit and vegetables every day to keep you , or concentrated in class, work etc.
Fat foods
fatty foods
Avoid eating salty foods, Foods that have lots of grease, and foods that are thick.
I am not sure which foods you should aviod with colitis. I have never known anyone who actually has colitis. You should contact your local doctor to avoid with colitis
avoid hard-to-digest foods such as nuts, corn, popcorn, and seeds
Betroot
starches
Fattening foods, sweets, and chips or junk foods...
You should definetly avoid foods high in fat(of course) but also high in carbohydrates. They give you a bubble butt.