Following are a number of back-translations as well as a sample translation for translators of Jeremiah 5:28:

• Kupsabiny: “In that way, they have become fat and healthy looking
  because sin became their food.
  They do not do right/justice towards the weak
  and do not also help those who are suppressed.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “They became-fat and their bodies became-strong. Their doing of wickedness has no stopping. They do not give justice to the parentless/orphans, and they do not defend the rights of the poor-ones.” (Source: Hiligaynon Back Translation)
• English: “They are big and fat,
  and there is no limit to the evil things that they have done.
  They do not try to defend orphans in the courtrooms,
  and they do not help poor people to get what they have a right to receive.” (Source: Translation for Translators)