[Cezar G]

Besides medication a strict vegan diet, very low in fat including oil would definitely help – no more root beer fructose or red meat. It seems that your husband can benefit greatly from a healthy diet and lifestyle to complement medical treatment.
Dr Neal Barnard is one of the ethical medical doctors presenting scientific evidence about these topics
https://www.youtube.com/watch?v=BnHYHjchn6w.
Many conditions will reverse or pause their progression even though the change might be really hard.
Good luck!

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