Thanks for posting your query at HealthCareMagic. The cause of anaemia needs to be investigated. The fact that he has a habit of grinding his teeth is independant from the probability that he could have worms that could cause blood loss and anaemia. I do not know his background but he might need to undergo a haemoglobin elecrophoresis to rule out diseases like thalassemia. The viral fever needs to be treated separately and although there could be correlations, you need not consider them at the moment. Depending upon the situation, he might require blood transfusion. To boost the amount of iron in your diet, try these foods: *Egg yolks. * Dark, leafy greens (spinach, collards) * Dried fruit (prunes, raisins) * Iron-enriched cereals and grains (check the labels) * Mollusks (oysters, clams, scallops) * Turkey or chicken giblets * Beans, lentils, chick peas and soybeans Hope that helps. If get back to me and I would try to help further.