“To be beneficial” in Japanese
Short answer
To be beneficial in Japanese is “薬になる” (kusurininaru). Full meaning: to be beneficial (to), to do (a person) good.
Other ways to say “To be beneficial” in Japanese
身になる
mininaru to do one good, to be beneficial, to be good for the body or mind, to be helpful, to be useful; to put oneself in the place of ..., to put oneself in (someone's) shoes
為になる
tameninaru to be of benefit, to be beneficial, to be useful, to do one good, to be good for one
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