Answer

In Jain tradition, it is commonly explained that eating food containing small living organisms, impurity, or carelessness in preparation can become a cause of suffering and disease.

Regarding kod rog commonly understood as skin disease/leprosy-type disease, Jain teachings especially warn against consuming improper, stale, contaminated, or non-ahimsak food.

Explanation

In the context of bhojan, the concern is usually about:

• Jeev-jantu in food — tiny living beings that may arise in old, stale, fermented, rotten, or improperly stored food.
• Impure food — food that has become contaminated, spoiled, or unfit to eat.
• Careless eating — eating without checking, filtering, cleaning, or observing proper Jain discipline.

Jain Dharma teaches that such food involves both:

• Himsa — violence toward tiny living beings.
• Ashuddhi — impurity that can harm the body and mind.

Spiritual Understanding

Jain Dharma emphasizes that bhojan should be taken with:

• Ahimsa
• Cleanliness
• Awareness
• Restraint
• Respect for life

The deeper teaching is not only fear of disease, but to develop jagruti — careful awareness — so that our eating causes minimum harm to living beings.

Takeaway

According to Jain understanding, stale, spoiled, contaminated, or jeev-containing food should be avoided, because it causes himsa and may also become a cause of diseases such as kod rog.