Final answer:
The incorrect statement about insoluble fibers is that they can be dissolved in water. In fact, insoluble fibers do not dissolve, but instead add bulk to waste in the digestive system and help with regular bowel movements.
Step-by-step explanation:
To identify the incorrect statement about insoluble fibers, we should look at each provided statement. Insoluble fibers are indeed found in foods like whole grains, nuts, and seeds. They also help to promote regular bowel movements and add bulk to the stool which can prevent constipation. However, insoluble fibers cannot be dissolved in water. They remain intact and help in moving waste through the digestive system.