•Daily provision:
•Multivitamin mineral 0.5 mg
•Glucosamine +
•Chondroitin*
3.5 mg
•*2010 Tesco have agreed to
•reduce the Mn content to 0.5 mg
•Adult intakes average 2.77 – 3.42 [95% CI 1.05-8.11]
mg/day
•Food sources: grains (50%), tea, beans, supplements
3%
•Deficiency rare but may occur in those fed
parenterally
•1.03% to 4.86% of dietary manganese is absorbed
•Absorption is increased in iron deficiency or by low
intake
•Excess is excreted via the bile, if liver
function is normal
•Safe Upper Level 4 mg but 0.5 mg/day for those aged >50 yrs
•Many UK preparations contain 1mg to 10 mg/day often with
Glucosamine but up to 60
mg/day in US imports