Could Senzu Beans cure diseases as well? Senzu bean is known as "magical healing bean", it can heal and restore consumer's health instantly when eaten. Does it cures diseases as well? Such as Goku's heart disease.
If Senzu bean could cure diseases, Goku wouldn't have died in the future and Trunks wouldn't have needed to go back from the future to give him the antidote.

From Dragon ball wikia 


  However, it appears that the beans can not heal injuries that have
  already healed over (like Tien's and Yamcha's respective scars or
  Saiyan tails) or cure ailments (like Goku's heart virus contracted
  during the Androids Saga)