"in good health" is correct and can be used in written English. You can use this phrase when you are talking about the well-being of someone or something. For example, "I am happy to say that my grandmother is still in good health.".
I'm in good health.
Use it in good health".
People in good health are rarely infected.
He is middle aged, in good health.
Most are young and in good health.
* I am in good health.
Wear them in good health?
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia