although iron is a trace mineral it is extremely important because a deficiency in this nutrient leads to a shortage of red blood cells a condition known as anemia. anemic individuals do not have an adequate supply of oxygen in their body which leaves them tired pale and short of breath.
minerals are also important for making enzymes and hormones. there are two kinds of minerals: macrominerals and trace minerals. you need larger amounts of macrominerals. they include calcium phosphorus magnesium sodium potassium chloride and sulfur. you only need small amounts of trace minerals. they include iron
iron is important in making red blood cells which carry oxygen around the body. a lack of iron can lead to iron deficiency anaemia. the amount of iron you need is: 8.7mg a day for men over 18 14.8mg a day for women aged 19 to 50 8.7mg a day for women over 50 you should be able to get all the iron
in that study boosting calcium intake in whatever form was associated with a small uptick in bone mineral density but investigators concluded that the 1 to 2 percent increase detected had no
but they're more precious for the global economy than for human health. instead other metals and minerals (metals are one type of mineral) are more important for our health (see "what essential metals do for us"). indeed some of them are so important that we can't live without them. "each one plays a role in hundreds of body functions.
an inadequate calcium supply occurs when too little is consumed too much is lost or not enough is absorbed. at the other extreme an excess of calcium in the body has been shown to depress nerve function cause drowsiness and extreme lethargy and decrease iron levels.
panel: postmenopausal women shouldn't take vitamin d calcium supplements to prevent fractures but certain components such as calcium and iron can be a problem. a spokesman for the
the sources of iron - the iron in meat and offal called haem iron is more easily absorbed than non-haem iron from plant sources. the presence of vitamin c (absorbi acid promotes the absorption of non-haem iron. it reduces ferric iron to te absorbable ferrous state.