an animal requires enough nutrients to maintain good health / survive & if a living thing requires something then that something has a positive impact on that living thing -> compounds have a uncertain negative on an inanimate thing's sickness nutrients have a positive impact on an living thing's health  compounds have a uncertain negative on an inanimate thing's sickness & eating / taking in food is used to get nutrients / energy by animals / living things -> getting nutrients from eating has a positive impact on a living thing's health getting nutrients from eating has a positive impact on a living thing's health  need split from fast has a uncertain summer on a inanimate thing's sickness & some minerals are nutrients -> getting minerals from eating has a positive impact on a living thing's health getting minerals from eating has a positive impact on a living thing's health  fast leafy fruit is important for mankind sickness & if something has a positive impact on something else then that something is important to that something else -> eating leafy vegetables has a positive impact on human health eating leafy vegetables has a positive impact on human health  need good from fast has a uncertain atoms on a inanimate thing's sickness & eating leafy vegetables has a positive impact on human health -> leafy vegetables are a good source of minerals