what are normal zinc levels?
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Normal serum zinc is 0.66 to 1.10 mcg/mL. Burn patients with acrodermatitis may have zinc as low as 0.4 mcg/mL; these patients respond quickly to zinc supplementation.
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The laboratory-normal range for ferritin is around 12-300 ng/mL for men and 12-150 ng/mL for women—the exact numbers depend on which reference you consult—but recall that new scientific research has shown that distance runners ought to have a minimum of 25 ng/mL to prevent poor performance.
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Just one tablespoon of pumpkin seeds provides: Almost 1mg zinc - the recommended daily allowance is 9.5mg for men and 7mg for women.
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When zinc intake is insufficient, levels within skeletal muscle, skin, and heart are maintained, while zinc levels in bone, liver, testes, and plasma decline. More than 100 specific enzymes require zinc for their catalytic function. 2 The body is not able to store excess zinc, so continuous dietary intake is required.
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Only a small intake of zinc is necessary to reap the benefits. Currently, the recommended dietary allowance (RDA) for zinc in the United States is 8 milligrams (mg) a day for women and 11 mg a day for men. The element is naturally found in many different foods, but it is also available as a dietary supplement.
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The recommended dose, which contains 25-50 mg of zinc, is to be taken three to five times daily.
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A normal range is anything above 0.300 and an optimal range is above 0.45nmol/l. Your free testosterone should be at least 2% of your total testosterone levels.
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Different salt forms provide different amounts of elemental zinc. Zinc sulfate contains 23% elemental zinc; 220 mg zinc sulfate contains 50 mg zinc. Zinc gluconate contains 14.3% elemental zinc; 10 mg zinc gluconate contains 1.43 mg zinc.
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Still, it contains trace amounts of minerals, including calcium, magnesium, sodium, zinc, and copper ( 1 ). In fact, one study found that by drinking 68 ounces (2 liters) of water per day, adults may fulfill 8–16% of their Daily Value (DV) for calcium and 6–31% of their DV for magnesium ( 2 ).
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The National Institutes of Health considers 40 mg of zinc a day to be the upper limit dose for adults and 4 mg of zinc a day for infants under age 6 months. Don't use intranasal zinc.
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Tolerable Upper Intake Levels (UL) of zinc for people who are not receiving zinc under medical supervision: adults 19 years and older (including pregnancy and lactation), 40 mg/day. The typical North American male consumes about 13 mg/day of dietary zinc; women consume approximately 9 mg/day.
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Mild zinc deficiency should be treated with zinc supplementation at two to three times the recommended dietary allowance (RDA), whereas moderate to severe deficiency can be treated at four to five times the RDA. 40,41 Treatment should last for six months.
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The recommended daily allowance for zinc is 8 milligrams per day for adult women and 12 milligrams per day during pregnancy and lactation. Hester notes that women trying to conceive can take the higher amount, but they should be cautious because too much zinc can interfere with copper absorption and metabolism.
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When taken by mouth: Zinc is LIKELY SAFE for most adults when taken by mouth in amounts not larger than 40 mg daily. Routine zinc supplementation is not recommended without the advice of a healthcare professional.
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Zinc has been proven safe in appropriate doses during pregnancy. Doses for pregnant women older than 19 years should not exceed 40 mg per day (34 mg/day for patients ages 14 to 18).
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A level of 20 nanograms/milliliter to 50 ng/mL is considered adequate for healthy people. A level less than 12 ng/mL indicates vitamin D deficiency.
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The National Institutes of Health considers 40 mg of zinc a day to be the upper limit dose for adults and 4 mg of zinc a day for infants under age 6 months.