Women who take iron supplements experience a marked improvement in their exercise performance a study has found. Researchers undertook a systematic review and analysis of the effect of iron supplements on the exercise performance of women in their child-bearing years. 'Iron supplementation improved women's exercise performance in terms of both the highest level they could achieve at 100 percent exertion and their exercise efficiency at a sub-maximal exertion' said lead researcher Sant-Rayn Pasricha from the Melbourne School of Population and Global Health.Women who were given iron were able to perform a given exercise using a lower heart rate and at a higher