Calcium Source
This brief article explains why
calcium is important for health and where to find the most
common calcium source ...
One of the most important minerals needed by the human body
is calcium. It is important for growth, maintenance and
reproduction. Finding the right calcium source is essential for
healthy bones and teeth.
It also aids in blood coagulation, transmission of nerve
impulses and muscle contraction and relaxation. Maintaining a
normal heartbeat, stimulation of hormone secretion, activation
of enzyme reactions, and other body functions all require
small amounts of calcium.
The most common place to find calcium is food. Dairy
products are the most significant calcium source. This includes
milk, yogurt, most cheeses and buttermilk. Low fat or fat free
versions are the best choices when choosing a calcium
source. One cup of skim milk or non- fat milk will have
more calcium than one cup of whole milk since calcium is not
contained in the fat portion of the milk. This means if you
remove the fat you actually get more calcium in the same
serving size because it you are replacing the fat with more of
the calcium source portion of the milk.
Green leafy vegetables including broccoli, collards, kale,
mustard greens, turnip greens, and bok choy or Chinese cabbage
are a good calcium source. Other green vegetables may not
be a good calcium source because their fiber and oxalic
acid content interferes with the body’s absorption of the
mineral.
Another group of foods that are high in calcium are salmon
and sardines, canned with their soft bones. Shellfish and nuts
such as almonds and Brazil nuts contain calcium, but it is
difficult to eat enough of these foods to consider them an
adequate calcium source.
Several food products, such as breads and orange juice, are
enriched with calcium to provide a calcium source for people
who dislike dairy or cannot tolerate it. Lactose-free milk and
cheese is also available. People who are lactose intolerant
have trouble digesting the sugarin milk, which is called
lactose.
The amount of calcium a person needs varies depending on
age, sex and special needs. Too much calcium, for a limited
period of time, does not usually cause problems. The exception
is an increased risk of kidney stones in those already
susceptible to them. Too little calcium can lead to
osteoporosis, and hypertension.
A total intake of up to 2,000 milligrams per day of calcium
is generally recommended and thought to be safe. The preferred
calcium source is calcium-enriched foods and dairy products,
but calcium supplements may also be used. An 8-ounce glass of
milk equals 300 milligrams of calcium, as does 6-ounces of
yogurt. Swiss cheese contains 520 milligrams of calcium in a
2-ounce serving. Two ounces of sardines with their bones equals
240 milligrams of calcium. Vitamin D is also necessary for the
body to absorb calcium.
For more information about healthy foods, diets and
nutrition, see the "resources" section of this website, or go
to articles about healthy foods, diets and nutrition.
DISCLAIMER:
This information is not presented by a medical
practitioner and is for educational and informational purposes
only. The content is not intended to be a substitute for
professional medical advice, diagnosis, or treatment. Always
seek the advice of your physician or other qualified health
care provider with any questions you may have regarding a
medical condition. Never disregard professional medical advice
or delay in seeking it because of something you have read.
Since natural and/or dietary supplements are not FDA
approved they must be accompanied by a two-part disclaimer on
the product label: that the statement has not been evaluated by
FDA and that the product is not intended to "diagnose, treat,
cure or prevent any disease."
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