Ninety-nine percent of calcium is
located in the skeleton for bone structure and strength, while one percent is
found in the soft tissues, extracellular fluid and plasma for metabolic and
regulatory roles.
Specifically, calcium is consumed for
the construction, formation and maintenance of bones and teeth, blood clotting
and wound healing, muscle contraction, maintenance of cells and connective
tissues, blood pressure control and nerve transmission, among others.
According to the Recommended Energy
and Nutrient Intakes (RENI) developed by the Food and Nutrition Research
Institute of the Department of Science and Technology (FNRI-DOST) in 2002,
calcium requirement differs according to population groups and sex.
The male and female adults 19 – 64
years old need 750 milligrams (mg) per day of calcium, while those 65 years old
and over need 800mg/day.
The Philippines
has relatively lower recommendation values for calcium than the United States , Australia and other Southeast Asian
countries.
Dried dilis, canned fish, sardines, some green vegetables and legumes,
seeds and nuts, snails and mollusks are the richest sources of calcium in the
diet, while milk, yogurt and cheddar cheese have the highest absorbable
calcium.
The 7th National Nutrition Survey
(NNS) by the Food and Nutrition Research Institute, Department of Science and
Technology (FNRI-DOST) revealed that mean one-day per capita calcium intake is
at 42.3% of the RENI and that calcium as the least- consumed nutrient in the
Filipino diet.
There was a drop in the proportion of
households meeting the RENI for calcium from 16.0% in 2003 to 11.5% in 2008.
The survey further showed that six to
twelve year-old children had the lowest consumption of calcium according to
population groups, with 0.26 grams per day.
Pregnant women had the highest mean
one-day calcium consumption among population groups.
In general, the estimated average
recommendation for calcium was not met and registered very low proportions
across population groups at around 9.8%.
Fish was shown to be the primary
source of calcium in the Filipino diet, followed by rice and cereals,
vegetables and milk and milk products.
Milk intake, as an excellent source of
dietary calcium, was also shown to be poor except in infants.
Calcium intake can be increased
through increased consumption of fish and milk in the diet, as well as
promoting cheaper sources of calcium.
Promotion of adequate calcium intake
throughout the lifespan is strongly encouraged to meet the recommended intakes
especially in infants after six months.
Everyone must take part in improving
the calcium intake, particularly during the growing years to avoid calcium deficiency-related
diseases such as osteoporosis.
For
more information on food and nutrition, contact: Dr. Mario V. Capanzana, Director, Food and
Nutrition Research Institute, Department of Science and Technology, General
Santos Avenue, Bicutan, Taguig City; Tel/Fax Num: 8372934 and 8373164; email: mvc@fnri.dost.gov.ph,
mar_v_c@yahoo.com;
FNRI-DOST website: http://www.fnri.dost.gov.ph. (FNRI-DOST
S & T Media Service: Press Release – JUND RIAN A. DORINGO)
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