Hi. i swim 2 per week and gym 4/w. since lastyear i have had anemia in 3 tests.improves with diet and iron pills, but return. anemia related to sport?

Anemia: Would check for food intolerences especially gluten. You can have anemia with gluten intolerence without having celiac disease. Would also check B12, methylmalonic acid for pernicious anemia.Rarely in extremes of weather ,temperature individuals who are sickle cell trait carriers, thalassemia or are G6PD deficient will react to high exercise so check for that .