Answer to Question #221412 in Biology for Abhishek Gaurav

Question

31. Explain the role of fibre and water in the human body.

32. Discuss the psychological changes occurring during old age that influence meal planning for the elderly. Enumerate the specific points to be kept in mind while planning diet for the elderly.

Answer 1

Fiber absorbs water (up to five times its weight) and expands as it passes through the bowel. In summary, fiber has a recognized role in regulating gastro-intestinal function, particularly in helping to prevent constipation. Dietary fiber increases the weight and size of your stool and softens it. A bulky stool is easier to pass, decreasing your chance of constipation. If you have loose, watery stools, fiber may help to solidify the stool because it absorbs water and adds bulk to stool.

Mood and preferences change tend to affect meal planning for the elderly.