Copper is a trace mineral which means that only a small amount is needed in the body. It has wide ranging functions including oxygen delivery to the brain. A deficiency can affect brain functioning and the immune system. Good sources are liver, kidney and nuts and seeds.
Iron is important for the haemoglobin in the blood. It is found in animal products and also in enriched grains, green leafy vegetables and beans and peas. Its absorption is helped by an intake of vitamin C. A deficiency will lead to anaemia which can impair mental functioning. Other symptoms include dizziness and cold hands and feet. A deficiency in iron is fairly common, especially amongst women of childbearing age.
Magnesium is important in the transmission of nerve impulses. The first symptoms are leg cramps, foot pain and muscle twitches. Good sources are green leafy vegetables, bananas, whole grains, nuts and seeds.
Selenium deficiency is rare, but an excess of selenium does happen. Symptom of this can included irritability and nervous system problems.
Zinc is also a trace minerals. Zinc has been linked with irritability, apathy and fatigue.
Iron is important for the haemoglobin in the blood. It is found in animal products and also in enriched grains, green leafy vegetables and beans and peas. Its absorption is helped by an intake of vitamin C. A deficiency will lead to anaemia which can impair mental functioning. Other symptoms include dizziness and cold hands and feet. A deficiency in iron is fairly common, especially amongst women of childbearing age.
Magnesium is important in the transmission of nerve impulses. The first symptoms are leg cramps, foot pain and muscle twitches. Good sources are green leafy vegetables, bananas, whole grains, nuts and seeds.
Selenium deficiency is rare, but an excess of selenium does happen. Symptom of this can included irritability and nervous system problems.
Zinc is also a trace minerals. Zinc has been linked with irritability, apathy and fatigue.