Salutary

The European fuel protests of 2000 were an excellent example of what will happen when we are deprived of our petrol and a salutary warning.

The free access which many young people have to romances, novels, and plays has poisoned the mind and corrupted the morals of many a promising youth; and prevented others from improving their minds in useful knowledge. Parents take care to feed their children with wholesome diet; and yet how unconcerned about the provision for the mind, whether they are furnished with salutary food, or with trash, chaff, or poison?

Releasing anger can be salutary.

salutary advice

The effect was most salutary; and, amid starts and screams—for the poor girl was fairly frightened out of the small portion of sense that, at any time, belonged to her—they learned that Lord Marchmont had been found dead in his bed; and that Lady Marchmont was, with the shock, in a state of almost insanity!

We do it here historically, and I think it's, um, very salutary to know quite a bit about the history of ideas, particularly in philosophy which always suffers from a tendency to follow the latest fashion.

Using such neofuturists as Nicholas Negroponte to support his argument, Groper argues that “being digital” is constitutive of today’s salutary political life (167).

In the living state, the body is observed to […] reject what is noxious; to select what is salutary; […]