Translation of "healthy" into Danish

The old fellow is as healthy and as strong as an oak.

Den gamle fyr er lige så sund og stærk som en eg.

But can a fish take preventive measures to stay healthy?

Kan en fisk tage forebyggende skridt til at forblive rask?

My grandfather is very healthy.

Min bedstefar har et meget godt helbred.

However, as the importers generally generated healthy margins, this decrease would in all likelihood not endanger those companies.

Da importørerne dog generelt havde en god fortjeneste, vil dette fald sandsynligvis ikke bringe virksomhederne i vanskeligheder.