For health I recommend learning Musar, [like the Duties of the Heart and the general set of books on Ethics you can find in almost any Lithuanian yeshiva. These are yeshivas which walk in the path of the Gra.]
These are books that don't deal directly with health but rather with the world view of Torah and how to keep Torah in a practical way. But the offshoot of learning these books is one gains fear of God. And fear of God is useful in several ways, one of which is health.
But not everything that deals with Torah ethics is accurate. Many books which claim to be teaching Torah are pseudo Torah. To get to real Fear of God one needs authentic Torah.
Now I realize that authentic Torah can be dry. This is in fact the reason why Musar and Gemara are not learned. They are hard and unless you develop a taste for them they are dry.
These are books that don't deal directly with health but rather with the world view of Torah and how to keep Torah in a practical way. But the offshoot of learning these books is one gains fear of God. And fear of God is useful in several ways, one of which is health.
But not everything that deals with Torah ethics is accurate. Many books which claim to be teaching Torah are pseudo Torah. To get to real Fear of God one needs authentic Torah.
Now I realize that authentic Torah can be dry. This is in fact the reason why Musar and Gemara are not learned. They are hard and unless you develop a taste for them they are dry.