When it comes to our number one killer: atherosclerosis and cardiovascular-disease, science has known that men tend to suffer more than women. And this is true until a woman reaches menopause, when her risks of heart-attack increase to match that of men. Scientist hypothesize that iron may play a role. Before menopause a women menstruates every month and loses quite a bit of iron each year, which adds up quick over the years. Men do not have this ability.
Iron tends to oxidize and create oxidative-stress and iron can also accumulate in organs and contribute to organ disorders. In fact, in many patients with diabetes, they find high levels of intracellular-iron accumulated in the pancreas, which damages the insulin producing beta-cells which leads to diabetes. The oxidation of iron contributes to LDL-oxidation and promotes atherosclerosis. And iron-accumulation in the brain promotes the onset of mental-dysfunctions.
So where is all this iron coming from?
First know that there are two types of iron; heme-iron and non-heme-iron. Heme-iron is “activated” iron and the body absorbs it without discretion. Whereas with non-heme-iron the body has a highly controlled and regulated absorbtion process; if your body is sufficient in iron, absorption is low and vice-versa. So a constant supply of heme-iron over the years can rapidly accumulate, regardless of sufficiency.
Heme-iron is only found in animal-food, like meat, seafood and eggs. In fact many researchers now believe the reason red-meat has been linked to heart-disease is not due to the saturated-fat content, but by rather the high levels of bioavailable heme-iron! And the best way to control over accumulation of iron is to reduce heme-iron intake. Avoidance of heme-iron is one of the most powerful, yet overlooked aspects into why vegetarians have better metabolic-heath than common omnivores.
Another way to lower your iron-accumulation is to donate blood. Studies show that people who donate have better insulin-secretion and insulin-sensitivity and overall much better metabolic-health.
So I am of the conclusion that excessive accumulation of iron contributes to disease and that we can reduce our tissue levels of iron back to an appropriate level by cutting back on consumption of meat, seafood and eggs, favoring more plant-based foods and donating blood every few months.
Edited by misterE, 10 April 2018 - 09:09 PM.