It's possible they could have an Iron deficiency. Blood is rich in Iron.
I would think its possible, just not very practical. The actual Iron content in blood is quite low. It would take allot of blood, and even then, extracting it somehow is also illusive.
Yes there is iron is blood
The iron used in cars is primarily in the form of steel, which is an alloy of iron and other elements. The iron in your blood is in the form of heme iron, which is bound to hemoglobin in red blood cells to carry oxygen. While both are forms of iron, they serve different purposes and are chemically different.
Hemoglobin is a blood protein containing iron.
Hemoglobin is a blood protein containing iron.
Most of the iron in blood is located in red blood cells. Iron helps to bind to oxygen molecules and transport them throughout the body.
Primarily hemoglobin which is derived from the mineral Iron. Iron however works in conjunction with dozens of other minerals and supplementation must include as many of it's co-factors as possible.
Iron levels are checked to rule out anaemia, which is a lack of iron in the blood. Iron is used to transport oxygen in blood, and so is extremely important. There are many possible causes of anaemia, including chronic blood loss. In the context of intestinal health, blood loss high up in the intestinal tract may not be detected by the patient, as the blood will turn brown or black by the time it exits the rectum. Intestinal bleeding can have many causes, but a clinical check for anaemia is the quickest and easiest way to detect the possibility of it.
Your blood. Iron is essential for your blood cells to do their job.
The iron abbreviation commonly measured in blood tests is "serum iron" or "Fe" for short. This test measures the level of iron in your blood and helps to diagnose conditions related to iron deficiency or overload.
The molecule of the protein haemoglobin has at its centre an atom of iron, as the central part of the molecule is an iron complex. This is why you need the mineral iron in your diet. Without sufficient iron in the diet the oxygen carrying capacity of the blood is lowered, and you will soon become anaemic.