Nutmeg is the seed of the nutmeg tree native to indonesia but widely cultivated in tropical asia and america the nutmeg is oval and rounded in shape greyish brown in colour and wrinkled the red weblike covering the seed is called mace and is also a spice nutmeg is widely used as a spice in savoury and sweet cooking especially for flavouring cakes and custards and dishes with potato eggs or cheese bases traditionally nutmeg has been used to treat diarrhoea and it is still given to some c