OF CALCIUM IN THE DIET

Bobby J. Demott,  33
3501 Equestrian Way
Knoxville, Tennessee  37921

To Your Health

        Dairy foods supply about 75 percent of the calcium in the American
diet. The calcium concentration of fluid milks is quite constant, but the
concentration in other dairy foods is altered by the manufacturing
procedures.

        One of the results of a low dietary intake of calcium is the
development of osteoporosis and curvature of the spine, where the vertebrae
have become soft and weak.

        When insufficient calcium is consumed, the body draws calcium from
bones to supply that needed for other physiological needs. The result is
porous bones which are weak and tend to fracture under stress.

        Though there are several factors involved in low bone density,
insufficient calcium in the diet is probably of greatest significance.
Females consume less calcium and are more susceptible to low bone density
than males. Low bone density is much easier to prevent than to correct.
Thus we are encouraged to consume diets rich in calcium throughout our life
cycle.

        The National Academy of Sciences (1990) recommends a daily intake
of 800 mg calcium for most age groups. Two 8-oz glasses of milk per day
will supply 70 percent of this amount; 3 glasses supply the complete
calcium requirement. The calcium concentration in non-dairy foods is so low
that disproportionate amounts would be required to supply the bodily needs
from this source only. Some foods, especially breads and cereals, have
extra calcium added during processing. Consumers should read the labels
carefully.

        Persons on a low sodium diet or a limited calorie diet can select
dairy products best suited to their needs. Most persons need more calcium
and fewer calories in their diet. Skim milk rates quite well in this
respect.

        Persons who have not consumed milk or other dairy products for
several months are advised to take small amounts for a few days, inasmuch
as abrupt changes in the nature of food consumed sometimes causes digestive
disturbances. Consumption of 4 ounces of milk per day at the start is
suggested. If no distress is produced, the amount can be gradually
increased over a period of 10 days to two or three eight-ounce glasses of
milk per day which will supply most of the calcium required.     s



retired in 1990. Prior to his retirement   Bro\  Demott  spent over 33
years on the faculty at The University of Tennessee where he taught and
conducted research in the area of dairy products. Bro\  Demott is a member
of Cherokee Lodge No. 728, Knoxville, and the Knoxville Scottish Rite
Bodies.

