As Mick mentions in his comment, "to deem healthy" is just a little aged-fashioned although not, I think, ample that you shouldn't learn the way to make use of the idiom. I would not get in touch with it "Victorian" English, as it is a phrase that sees typical use https://cleanlitterpracticesuae11986.blogoxo.com/37093890/how-to-take-care-of-a-cat-uae-secrets