Something that is salutary is good for you or is helpful in some way, especially when it is something that might seem bad at first.
The word salutary makes people think of things that are good for them, even if they don't seem good at first.
Examples:
Eating vegetables is salutary for your health.
The new rules may seem strict, but they are salutary for everyone.
The salutary medicine tasted bad, but it made me feel better.
The rainy day was salutary because it made the plants grow.
Studying every day is salutary for doing well on tests.
The salutary advice helped me a lot.