IBD DIETS CAN PUT CROHNIES AND UCEES AT RISK

Some Crohnies and UCees follow certain diets (grain free, dairy free, low fiber, etc) which can lead to low nutrient levels. If they also have diarrhea and / or poor absorption that increases the risk for undernutrition and nutrient deficiencies. 

Grain free diets (Paleo, specific carbohydrate, Low carb, autoimmune, or keto) can lower total calories, total carbohydrates, and B vitamins.

Dairy Free/ Lactose free diets lower calcium , vitamin D, and vitamin K.

Low Fiber diets (avoiding fruits, vegetables, and occasionally grains) can lower vitamin C, vitamin E, vitamin A, potassium, and other minerals levels.

Iron can also be a nutrient of concern for Crohnies even if they eat iron-rich foods like fortified cereals, beans, and red meats. That's because poor absorption and blood loss can lower levels.  Zinc can also be lost with diarrhea.

Monitoring Your Intake to Correct Possible Problems

One way to monitor these nutrients is to keep a food diary for 3-5 days. Reviewing the food diary with a registered dietician or your doctor can help determine what vitamins and minerals may be lacking in the diet–so you can correct the problem