Agree with the message but the phrasing is slightly off.
Some people have bodies that don’t function perfectly in the climate they’re in, resulting in, for example, vitamin D shortage. Taking some vitamin supplements can help in that case. You were never healthy before, but are after you start taking supplements.
Sometimes these things are long term too. You can use medicine to reduce skin oil generation to combat acne. Antibiotics can help you overcome a bacterial infection, antiviral medicine can help with viral infections. When you get better from those infections you can stop taking the medicine and continue to be healthy.