Cashew nuts are the seed of the apple found on the cashew tree, and like other tree nuts, are a useful source of fibre and protein, a combination that breaks down slowly in the digestive system leading to feeling fuller for longer.
Cashews are rich in many nutrients, but most notable are vitamin K, copper, magnesium, iron and zinc. Vitamin K plays an important role is helping blood clotting as well as in the formation of bone-forming cells whilst magnesium helps muscles relax and is also required for maintaining strong bones.
But it is copper that is especially plentiful in cashew nuts as 28g supplies over 30% of our daily needs. Copper is involved in the formation of red blood cells that carry iron as well as the metabolism of glucose into energy. In addition copper plays a role in brain function, and also in pigmentation of skin, hair and eyes.
Copper is also an integral part of an antioxidant that is produced by the human body and so plays an indirect role in protecting cells from damage caused by oxidation
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