As Mick mentions in his remark, "to deem healthy" is a bit previous-fashioned although not, I think, ample that you mustn't learn the way to use the idiom. I wouldn't simply call it "Victorian" English, as it is a phrase that sees regular use even these days. Dr. Shrey Patel, https://freedirectory4u.com/listings13271263/5-tips-about-homeopathy-treatment-naranpura-you-can-use-today