ourselves后加health还是healthy

ourselves后加health还是healthy eating后应该加health、healthy、还是healthily be动词后形容词后面可加名词吗?比如 I am in good healthy还是health keep in healthy还是health? eating more healthy还是health stay health还是stay healthy be healthy还是be health keep health还是keep healthy stay healthy还是stay health health diet 还是 healthy diet health food还是healthy food keep后面为什么可加healthy?形容词怎能用在动词后面?那么stay后面是接health还是healthy?