As Mick mentions in his comment, "to deem healthy" is a bit aged-fashioned although not, I feel, more than enough that you should not learn how to make use of the idiom. I wouldn't simply call it "Victorian" English, as it's a phrase that sees common use even these days. https://howtotakecareofacatuae49370.affiliatblogger.com/88776306/the-smart-trick-of-cat-diet-guidelines-dubai-that-no-one-is-discussing