# The Science behind Active Iron – Tough on Tiredness, Kind on you

Present modes of iron supplementation and fortification are not without problems. Typical supplements are limited by poor absorption, resulting in widespread use of high dose formulations. These are poorly tolerated, contributing to side effects such as nausea, constipation, stomach pain and poor compliance.

In fact, up to 80 per cent of women taking oral iron supplements experience unfavourable side-effects. Research data has also shown that 40 per cent of women did not take their oral iron medication regularly, due to side-effects, placing them at high risk of health problems.


Ferrous sulphate is currently the only oral iron recommended by the WHO Essential Medicines List. Whilst it is inexpensive in its present form it is also poorly tolerated.