Glucose test results and iron was low..

Diamond • I' am a mother of two, my son was born premature at 24 weeks. Now expecting our baby girl! RIH Jr
I took my glucose test yesterday and I failed it so I have to go take the three hour test next week. They also said my iron was really low and to start taking a iron pill once a day. Are there any foods or snacks that I can eat to help with this problem as well?