Zinc is found in cells throughout the body. The DV for zinc is 15 mg for adults and children age 4 and older. Zinc is involved in numerous aspects of cellular metabolism. Symptoms of zinc deficiency include: Frequent infections Hypogonadism in males Loss of hair Poor appetite Problems with the sense of taste Problems with the sense of smell Skin sores Slow growth Trouble seeing in the dark Wounds that take a long time to heal Zinc supplements taken in large amounts may cause diarrhea, abdominal cramps, and vomiting. Oatmeal, instant, plain, prepared with water, 1 packet. Zinc is in most multivitamin and mineral supplements. Of the trace minerals, this element is second only to iron in its concentration in the body. S. To use the sharing features on this page, please enable JavaScript. During pregnancy, infancy, and childhood the body needs zinc to grow and develop properly. However, supplementation beyond the RDA is not recommended at this time. The percentage of elemental zinc varies by form. Adequate Intake (AI): established when evidence is insufficient to develop an RDA and is set at a level assumed to ensure nutritional adequacy. Beef, pork, and lamb contain more zinc than fish. Zinc is also found in some over-the-counter medicines, such as cold lozenges, nasal sprays, and nasal gels. Zinc is an essential mineral that is naturally present in some foods, added to others, and available as a dietary supplement. Research has not determined whether differences exist among forms of zinc in absorption, bioavailability, or tolerability. DVs were developed by the U. Zinc is an important trace mineral that people need to stay healthy. Table of Contents Introduction Recommended Intakes Sources of Zinc Zinc Intakes and Status Zinc Deficiency Groups at Risk of Zinc Inadequacy Zinc and Health Health Risks from Excessive Zinc Interactions with Medications Zinc and Healthful Diets References Disclaimer.
For infants aged 0 to 6 months, the FNB established an AI for zinc that is equivalent to the mean intake of zinc in healthy, breastfed infants. The dark meat of a chicken has more zinc than the light meat. It is not clear whether one form is better than the others. Fruits and vegetables are not good sources, because the zinc in plant proteins is not as available for use by the body as the zinc from animal proteins. Food labels, however, are not required to list zinc content unless a food has been fortified with this nutrient. Other good sources of zinc are nuts, whole grains, legumes, and yeast. Zinc is also needed for the senses of smell and taste. The elemental zinc content appears in the Supplement Facts panel on the supplement container. Recent information from an expert review on zinc supplements showed that: When taken for at least 5 months, zinc may reduce your risk of becoming sick with the common cold. Food and Drug Administration to help consumers compare the nutrient contents of products within the context of a total diet. Supplements contain several forms of zinc, including zinc gluconate, zinc sulfate, and zinc acetate. Animal proteins are a good source of zinc. Foods providing 20% or more of the DV are considered to be high sources of a nutrient. Oysters contain more zinc per serving than any other food, but red meat and poultry provide the majority of zinc in the American diet. These supplements may contain zinc gluconate, zinc sulfate, or zinc acetate. It plays a role in cell division, cell growth, wound healing, and the breakdown of carbohydrates. Zinc is also found in many cold lozenges and some over-the-counter drugs sold as cold remedies. Therefore, low-protein diets and vegetarian diets tend to be low in zinc. Starting to take zinc supplements within 24 hours after cold symptoms begin may reduce how long the symptoms last and make the symptoms less severe. DRI is the general term for a set of reference values used for planning and assessing nutrient intakes of healthy people.
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