{"id":13773,"date":"2021-11-24T02:02:35","date_gmt":"2021-11-24T02:02:35","guid":{"rendered":"https:\/\/www.knowlative.com\/?p=13773"},"modified":"2022-04-26T09:19:24","modified_gmt":"2022-04-26T09:19:24","slug":"zinc","status":"publish","type":"post","link":"https:\/\/www.knowlative.com\/ru\/zinc\/","title":{"rendered":"Zinc"},"content":{"rendered":"
<\/p>\n
Symbol: Zn<\/p>\n
Atomic Number: 30<\/p>\n
Food Sources:<\/strong><\/p>\n Oysters, red meat, poultry, nuts, whole grains, dairy products.<\/p>\n Non-Food Sources:<\/strong><\/p>\n Galvanised iron; brass; solder; die-casting; tires; zinc oxide is used in paints, rubber, textiles, sunscreens and plastics.<\/p>\n Possible Deficiency Symptoms:<\/strong><\/p>\n Persistent leg ulcers & pressure sores; red, greasy skin on face; skin problems, poor hair growth; dandruff; night blindness; brittle nails; white spots on nails.<\/p>\n Possible Toxicity:<\/strong><\/p>\n Impaired copper & iron absorption; gastro-intestinal disturbances; mask-like fixed expression; difficulty in walking; slurred speech; hand tremor; involuntary laughter.<\/p>\n Included in Common Elements (Metals and Minerals) Test Kit (product code 8126) and Elements Test Kit (product code 8134) available from Life-Work Potential Limited.<\/p>\n Zinc is a nutrient that people need to stay healthy. Zinc is found in cells throughout the body. It helps the immune system fight off invading bacteria and viruses. The body also needs zinc to make proteins and DNA, the genetic material in all cells. During pregnancy, infancy, and childhood, the body needs zinc to grow and develop properly. Zinc also helps wounds heal and is important for proper senses of taste and smell.<\/p>\n The amount of zinc you need each day depends on your age. Average daily recommended amounts for different ages are listed below in milligrams (mg):<\/p>\n (see Image 2)<\/p>\n Zinc is found in a wide variety of foods. You can get recommended amounts of zinc by eating a variety of foods including the following:<\/p>\n Zinc is present in almost all multivitamin\/mineral dietary supplements. It is also available alone or combined with calcium, magnesium or other ingredients in dietary supplements. Dietary supplements can have several different forms of zinc including zinc gluconate, zinc sulfate and zinc acetate. It is not clear whether one form is better than the others.<\/p>\n Zinc is also found in some oral over-the-counter products, including those labeled as homeopathic medications for colds. Use of nasal sprays and gels that contain zinc has been associated with the loss of the sense of smell, in some cases long-lasting or permanent. Currently, these safety concerns have not been found to be associated with oral products containing zinc, such as cold lozenges.<\/p>\n Zinc is also present in some denture adhesive creams. Using large amounts of these products, well beyond recommended levels, could lead to excessive zinc intake and copper deficiency. This can cause neurological problems, including numbness and weakness in the arms and legs.<\/p>\n Most people in the United States get enough zinc from the foods they eat.<\/p>\n However, certain groups of people are more likely than others to have trouble getting enough zinc:<\/p>\n Zinc deficiency is rare in North America. It causes slow growth in infants and children, delayed sexual development in adolescents and impotence in men. Zinc deficiency also causes hair loss, diarrhea, eye and skin sores and loss of appetite. Weight loss, problems with wound healing, decreased ability to taste food, and lower alertness levels can also occur.<\/p>\n Many of these symptoms can be signs of problems other than zinc deficiency. If you have these symptoms, your doctor can help determine whether you might have a zinc deficiency.<\/p>\n Scientists are studying zinc to learn about its effects on the immune system (the body\u2019s defense system against bacteria, viruses, and other foreign invaders). Scientists are also researching possible connections between zinc and the health problems discussed below.<\/p>\n The body\u2019s immune system needs zinc to do its job. Older people and children in developing countries who have low levels of zinc might have a higher risk of getting pneumonia and other infections. Zinc also helps the skin stay healthy. Some people who have skin ulcers might benefit from zinc dietary supplements, but only if they have low levels of zinc.<\/p>\n Children in developing countries often die from diarrhea. Studies show that zinc dietary supplements help reduce the symptoms and duration of diarrhea in these children, many of whom are zinc deficient or otherwise malnourished. The World Health Organization and UNICEF recommend that children with diarrhea take zinc for 10\u201314 days (20 mg\/day, or 10 mg\/day for infants under 6 months). It is not clear whether zinc dietary supplements can help treat diarrhea in children who get enough zinc, such as most children in the United States.<\/p>\n Some studies suggest that zinc lozenges or syrup (but not zinc dietary supplements in pill form) help speed recovery from the common cold and reduce its symptoms if taken within 24 hours of coming down with a cold. However, more study is needed to determine the best dose and form of zinc, as well as how long it should be taken before zinc can be recommended as a treatment for the common cold.<\/p>\n AMD is an eye disease that gradually causes vision loss. Research suggests that zinc might help slow AMD progression. In a large study among older people with AMD who were at high risk of developing advanced AMD, those who took a daily dietary supplement with 80 mg zinc, 500 mg vitamin C, 400 IU vitamin E, 15 mg beta-carotene, and 2 mg copper for about 6 years had a lower chance of developing advanced AMD and less vision loss than those who did not take the dietary supplement. In the same study, people at high risk of the disease who took dietary supplements containing only zinc also had a lower risk of getting advanced AMD than those who did not take zinc dietary supplements. People who have or are developing the disease might want to talk with their doctor about taking dietary supplements.<\/p>\n Yes, if you get too much. Signs of too much zinc include nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. When people take too much zinc for a long time, they sometimes have problems such as low copper levels, lower immunity, and low levels of HDL cholesterol (the \u201cgood\u201d cholesterol).<\/p>\n The daily upper limits for zinc are listed below. These levels do not apply to people who are taking zinc for medical reasons under the care of a doctor:<\/p>\n (see Image 3)<\/p>\n Yes. Zinc dietary supplements can interact or interfere with medicines that you take and, in some cases, medicines can lower zinc levels in the body. Here are several examples:<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Symbol: Zn Atomic Number: 30 Food Sources: Oysters, red meat, poultry, nuts, whole grains, dairy products. Non-Food Sources: Galvanised iron; brass; solder; die-casting; tires; zinc oxide is used in paints, rubber, textiles, sunscreens and plastics. Possible Deficiency Symptoms: Persistent leg ulcers & pressure sores; red, greasy skin on face; skin problems, poor hair growth; dandruff; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"categories":[80],"tags":[],"acf":[],"yoast_head":"\nWhat is zinc and what does it do?<\/h1>\n
How much zinc do I need?<\/h1>\n
What foods provide zinc?<\/h1>\n
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What kinds of zinc dietary supplements are available?<\/h1>\n
Am I getting enough zinc?<\/h1>\n
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What happens if I don\u2019t get enough zinc?<\/h1>\n
What are some effects of zinc on health?<\/h1>\n
Immune system and wound healing<\/h2>\n
Diarrhea<\/h2>\n
The common cold<\/h2>\n
Age-related macular degeneration (AMD)<\/h2>\n
Can zinc be harmful?<\/h1>\n
Are there any interactions with zinc that I should know about?<\/h1>\n
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