The maximum tolerable upper level for long term usage is 25 - 40 mg per day however Zinc interacts with other minerals. It is best to take a mineral complex and top the remaining zinc up to the 25 - 40 mg with separate zinc tablets.
Infants * 0 - 6 months: 2 milligrams per day (mg/day) * 7 - 12 months: 3 mg/day Children * 1 - 3 years: 3 mg/day * 4 - 8 years: 5 mg/day * 9 - 13 years: 8 mg/day Adolescents and Adults * Males age 14 and over: 11 mg/day * Females age 14 to 18 years: 9 mg/day * Females age 19 and over: 8 mg/day
The most important consideration is to get reasonably close to one seventh as much copper as zinc in the diet. Those two interfere with each other. I had a well liked relative die recently who was on blood thinners when she started to bleed from a brain blood vessel. She had been taking large zinc supplements but no copper, and copper is essential for strong arteries. The reverse is not good either. I suspect that a zinc deficiency can cause a swollen prostate. You may see a discussion of copper nutrition that also has some zinc information in the first URL. You may see a copper and zinc food content table in the second URL expressed as weight per calorie, the most useful way.
Both URL-links added as 'Related links'
Added:RDA = daily dietary intake levelUpper limit = UL = Tolerable upper intake levels
In 2000, the National Academy of Sciences set a tolerable upper limit (UI) of 40 milligrams for daily intake of zinc for adults age 19 and over. The establishment of this limit was largely related to the ability of zinc, especially supplemental zinc, to impair the status of other nutrients.
15 mg
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The RDI for zinc is 11-15mg (for male adults). For example, 10 mg of zinc gluconate contains 1,43 elemental zinc. Therefore, one should ingest 77 mg of zinc gluconate daily in order to meet their daily requirements (provided that one does not obtain zinc from other food sources).
Zinc is the full name of the metal. Zinc is an transition element, proton number 30, Relative atomic mass about 65. However, there are loads of possible zinc compounds (zinc chemically tied to something else) such as Zinc chloride, zinc sulphate, zinc nitrate...
Zinc is obtained from zinc blende/sphalerite ore (zinc sulphide)
u get zinc oxide
Well there are numerous studies which have shown that zinc supplementation (10-20 mg per day until cessation of diarrhoea) significantly reduces the severity, duration of diarrhoea and the risk of dehydration will be reduced in children less than 5 years of age. Short course supplementation with zinc (10-20 mg per day for 10 to 14 days) also reduces the incidence of diarrhoea for 2 to 3 months. So it is now recommended that zinc (10-20 mg/day) be given for 10 to 14 days to all children with diarrhoea. Zinc can be given as a syrup or as dispersible tablets, whichever formulation is available and affordable. WHO and UNICEF therefore recommend daily 20 mg zinc supplements for 10–14 days for children with acute diarrhoea, and 10 mg per day for infants under six months old, to curtail the severity of the episode and prevent further occurrences in the ensuing 2-3 months.
The RDI for zinc is 11-15mg (for male adults). For example, 10 mg of zinc gluconate contains 1,43 elemental zinc. Therefore, one should ingest 77 mg of zinc gluconate daily in order to meet their daily requirements (provided that one does not obtain zinc from other food sources).
bonuses
Recommended Daily Dosage
Minerals are categorize into two forms, the major minerals and the trace minerals. The major minerals intake recommends 250 milligrams daily. For trace minerals the recommended intake is less than 20 milligrams daily.
Recommended Daily Dose or Recommended Daily Dose
Sunblock.
The daily dose of recommended fiber for adults is 20 to 30 mg
RDA (Recommended Daily Allowances)
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Recommended Daily Diet or Recommended Daily Dose. i think its the first one though
DRI-daily recommended intake RDA- recommended daily allowance
What are the recommended daily allowances based on a 1500 calorie diet