The best Vitamin there is!
Before my parents, ad me'ah v'esrim, flew back to New York, it was decided to check that my father was really healthy enough to make the trip. After a bit of networking with Israeli friends, my mother decided to take him to the Shaare Tzedek Emergency Room.
The head doctor checked him out.
Baruch Hashem, bli eyin haraa, he passed all the tests. Regardless, the doctor gave them a prescription:
Considering that most of their descendants are here in Israel, and the visit to Shaare Tzedek's Emergency Room confirmed the high level of medical care available, making aliyah would definitely be good for their health!