Poor food choices can result in , a group of conditions characterized by an insufficient number of properly formed red blood cells:

The correct answer is: Anaemia.

Explanation:

Anaemia can be defined as a medical condition in which the quantity or the quality of erythrocytes (red blood cells) produced in the body is far less or poorer than normal.The essential function of erythrocytes is that it carries oxygen from the lungs to all the cells of the body in association with a iron containing protein molecule called Haemoglobin.Haemoglobin can bind to oxygen molecules because of its high affinity towards it.Anaemia can also be caused if the number of haemoglobin proteins synthesised in the body is far less than normal.Oxygen is an essential component for all the body cells as cells can undergo metabolism, produce their food and energy by the process of  oxidation and this requires oxygen.The various organs and cells an anaemic person does not obtain sufficient amount of oxygen to carry out their metabolism. Hence, the heart has to bear the pressure to pump more blood such that all the cells in the body receive the required amount of oxygen for their functioning.Intake of food deficient in Iron, Cobalamin (Vitamin B12) and Folic acid (Vitamin B9) can result in Anaemia.Iron is the essential component of the Haemoglobin protein, while cobalamin and folic acid provides nourishment to the red blood cells and keeps them healthy.