It’s best to take fiber supplements in the morning so that they can help control your appetite. You should also look for a supplement that contains soluble fiber, which is better absorbed by the body than insoluble fiber. This type of fiber may have additional benefits, such as improving heart health and lowering cholesterol levels. Although it’s always good to get enough dietary fiber every day, you shouldn’t take too much or too little of any kind because this could lead to digestive issues like constipation. Some people are allergic to vegetables, but most are not allergic only to wheat gluten; if you do have an allergy, make sure you talk with your doctor about whether or not these products are safe for you before taking them.