5 ms·
According to the NHS (http://www.nhs.uk/Conditions/vitamins-minerals/Pages/Vitamin-C.aspx http://www.nhs.uk/Conditions/vitamins-minerals/Pages/Vitamin...), 1000
by withad 11y ago
According to the NHS (http://www.nhs.uk/Conditions/vitamins-minerals/Pages/Vitamin-C.aspx http://www.nhs.uk/Conditions/vitamins-minerals/Pages/Vitamin...), 1000mg is the typical cut-off for where vitamin C becomes toxic (which is dramatically higher than the 40mg a day most people actually need).