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Vitamins and minerals

Zinc picolinate

Product code: P2604

Zinc picolinate is the zinc salt of picolic acid. Studies have demonstrated that zinc picolinate is more bioavailable than other zinc compounds. While zinc picolinate does not have the highest zinc content of all the zinc compounds, it is considered an easily absorbed form (compared with zinc gluconate and zinc citrate). The most popular applications for zinc is in 'beauty from within', testostesterone 'boosters' and immune health products, but there are a long list of health claims authorised for zinc.

Dose

The reference intake (RI) for zinc is 10mg 

The zinc content of zinc picolinate is 20-23%; therefore 50mg of zinc picolinate would be required to obtain 100% of the RI for zinc.

Data on the toxicity of zinc picolinate are limited. 

The upper limit for zinc (adults) is 25mg/day.

The Department of Health advises that long term intake of >25mg/day  of zinc may lead to anaemia.

EFSA Health Claims for Zinc 

Zinc contributes to normal DNA synthesis 

Zinc contributes to normal acid-base metabolism

Zinc contributes to normal carbohydrate metabolism 

Zinc contributes to normal cognitive function

Zinc contributes to normal fertility and reproduction

Zinc contributes to normal macronutrient metabolism

Zinc contributes to normal metabolism of fatty acids

Zinc contributes to normal metabolism of vitamin A

Zinc contributes to normal protein synthesis 

Zinc contributes to the maintenance of normal bones 

Zinc contributes to the maintenance of normal hair 

Zinc contributes to the maintenance of normal nails 

Zinc contributes to the maintenance of normal skin 

Zinc contributes to the maintenance of normal testosterone levels in the blood 

Zinc contributes to the maintenance of normal vision 

Zinc contributes to the normal function of the immune system 

Zinc contributes to the protection of cells from oxidative stress 

Zinc has a role in the process of cell division

Resources

The EFSA Scientific Opinion on Chromium picolinate, zinc picolinate and zinc picolinate dihydrate added for nutritional purposes in food supplements (Adopted on 4 June 2009) can be found here: https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2009.1113

 

 

CR - 15/05/2019

 

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