Overview
Zinc is
one of the essential minerals minerals that your body needs in
order to function properly. It is found in small amounts in
every cell in the body, and contributes to 300 different
chemical interactions that sustain life by stimulating the
actions of 100 different enzymes. Zinc is needed for normal
growth and development, especially during pregnancy, childhood
and adolescence. It is also a vital part of DNA synthesis, helps
support the immune system and is needed to help wounds heal
properly. Recent research suggests that zinc may help lessen the
length and severity of colds, as well as boosting the
effectiveness of some vitamins and hormones. Zinc has been used
as a topical ointment and a dietary supplement for decades.
What
Zinc Does:
Zinc stimulates
anti-viral activity in your body, and stimulates the actions of
over 100 different enzymes. Those enzymes are responsible for
vital parts of the process of converting food to energy,
differentiating cells, fighting disease, regulating temperature
in your body and more. Zinc plays a role in the production of
healthy sperm in males, and helps cells begin to differentiate
in a developing fetus, making the mineral a vital ingredient in
reproduction. In addition, zinc is an antioxidant that helps
speed the healing of all types of wounds, and is effective
against symptoms of various immune system disorders.
Where
Zinc Comes From:
Zinc occurs
naturally in a number of foods, though the highest sources of
zinc are animal sources. Red meat, poultry, fortified breakfast
cereals and some nuts and dried beans all provide some zinc, but
other than meat and fortified breakfast cereal, few food sources
provide more than 10% of the recommended daily allowance of zinc
in one serving.
Health
Benefits of Zinc:
Because
of its role as an antioxidant, and in so many bodily processes,
zinc offers many health benefits. Zinc is essential, and lowered
levels of zinc contribute to lowered disease resistance, lower
healing capability and poor digestive and metabolic processing
for your body. Specifically, research has shown that:
In
studies, subjects who sucked on a zinc lozenge every few hours
got over their cold symptoms about three days sooner than those
who took a placebo. Scientists believe that zinc may actually
kill the cold virus.
Zinc is
one of the nutrients that your body uses in rebuilding damaged
skin. Researchers speculate that taking zinc supplements to
ensure adequate supplies of zinc in your system may help heal
skin disorders such as acne, rosacea, eczema and psoriasis.
In at
least one study, taking zinc supplements boosted the
effectiveness of topical acne medications in clearing up acne.
Because
it is vital in processes in the retina and macula, zinc
supplements have been shown to slow vision loss in cases of
macular degeneration. Zinc also seems to boost the effectiveness
of vitamin A, a vitamin thats vital to eye health. And in a
study in France, 78% of the people who treated seasonal
conjunctivitis with a combination of zinc and antihistamines
showed considerable improvement in their symptoms.
Zinc is
instrumental in the manufacture of hormones like insulin in the
body, which may help control blood sugar in those with type 2
diabetes. In addition, high blood sugar slows the bodys ability
to heal wounds, and zinc may help offset that problem.
Because
zinc helps the body to absorb other minerals, zinc and copper
supplements are sometimes used to help strengthen bones to
resist osteoporosis.
Recommended Daily Intake of Zinc:
-
Children 1-3 years 3 mg
-
Children 4-8 years 7 mg
-
Children 9-13 years 8 mg
-
Males 14-18 11 mg
-
Females 14-18 9 mg
-
Males 19+ - 11 mg
-
Females 19+ - 8 mg
-
Males 50+ - 11 mg
-
Females 50+ - 8 mg
-
Pregnant females 11 mg
-
Lactating females 12 mg
In
addition, the National Academy of Science has established
tolerable upper level intake references for zinc. These numbers
represent the highest amount of zinc intake that have not been
associated with adverse health effects. Those under medical
treatment may be prescribed higher levels of zinc, but it is
important that they be monitored by a medical professional for
any health problems.
-
Children 1-3 years 7 mg
-
Children 4-8 years 12 mg
-
Children 9-13 years 23 mg
-
Males 14-18 34 mg
-
Females 14-18 34 mg
-
Males 19+ - 40 mg
-
Females 19+ - 40 mg
-
Males 50+ - 40 mg
-
Females 50+ - 40 mg
-
Pregnant females 40 mg
-
Lactating females 40 mg
Symptoms of Zinc Deficiency:
Severe
zinc deficiency is rare in the U.S. and other developed
countries, but studies are increasingly showing that even
moderately low levels of zinc may lead to depressed immune
system function. The conditions associated with low levels of
zinc include increased risk of cold and flu, diminished sense of
taste and smell, lowered glucose tolerance (which could lead to
diabetes), eczema, acne, psoriasis, slow wound healing and low
sperm counts. Because the highest natural sources of zinc are
meats and meat products, those who dont eat red meat should be
especially careful to include fortified cereals and nutritional
supplements with zinc in their daily diet.
Zinc
Toxicity:
Excessive intake of zinc can result in zinc toxicity, with
nausea, vomiting and diarrhea. Some studies suggest that taking
high dosages of zinc for a long period of time can negatively
affect cholesterol balance and diminish immune system function.
While dosages far in excess of the RDA are routinely prescribed
for various conditions, most nutritionists caution against
taking more than 100 mg of zinc daily to avoid these problems.
Supplementing with Zinc:
Because
the daily requirements for zinc are low, and high levels of zinc
can result in health problems, most people find that the zinc in
a daily total health supplement provides enough zinc for their
nutritional needs. A whole health nutritional supplement like
Total Balance from
Xtend-Life Natural Products contains 10 mgs of zinc, 75% of
the daily recommended intake. Because
Total Balance is synergistically balanced to provide maximum
benefits from all of its ingredients, zinc works in concert with
11 other essential minerals and 70 vital nutrients to help keep
your body in top working order.
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