I recommend to my patients to purchase(in the UK) Ferrous Fumurate (has better bioavailabilty than ferrous sulphate), the more you take the better (upto 3 times a day, you may have GI side effects) and take with 200mg+ of Vitamin C (or fresh orange juice), and don’t have tea/coffee/dairy one hour either side of taking it.
I recommend to my patients to purchase(in the UK) Ferrous Fumurate (has better bioavailabilty than ferrous sulphate), the more you take the better (upto 3 times a day, you may have GI side effects) and take with 200mg+ of Vitamin C (or fresh orange juice), and don’t have tea/coffee/dairy one hour either side of taking it.
(I’m a GP/Family Physician)