Adequate fiber, together with adequate fluid, helps maintain normal bowel function. Fiber also is thought to decrease risk of intestinal inflammation. Vegetables, fruits, grain products, cereals, seeds, legumes and nuts are all sources of dietary fiber. Vitamins and Minerals Vitamin deficiencies may not be obvious in many older people. However, any illness stresses the body and may be enough to use up whatever stores there are and make the person vitamin deficient.
Medications also interfere with many vitamins.
When drug histories are looked at, nutrient deficiencies emerge. Eating nutrient-dense foods becomes increasingly important when calorie needs decline but vitamin and mineral needs remain high. Always provide vitamin D-fortified milk for the housebound, nursing home residents, and anyone who does not get adequate exposure to sunlight. Iron and calcium intake sometimes appears to be low in many elderly. Add vitamin C-rich fruits and vegetables.