Answer

Yes, dahi (curd/yogurt) is generally eaten by many Jains, but it should be fresh and consumed with care.

Explanation

In Jain Dharma, food is judged mainly by its effect on himsa (violence), attachment, and spiritual discipline.

For dahi:

• Fresh dahi is commonly accepted in many Jain households.
• Old, sour, or fermented for too long dahi is avoided by more careful practitioners because fermentation can involve growth of many microorganisms.
• Dahi should generally be prepared and consumed within a proper time limit according to family, sect, and guru guidance.
• Many Jains avoid eating dahi at night.

Spiritual Understanding

The Jain approach is not only “Can I eat this?” but also “Does this increase unnecessary harm?” So even when dahi is allowed, one should avoid carelessness, excessive fermentation, and wastage.

Takeaway

You may eat fresh dahi, but avoid stale, overly sour, or night-time consumption, and follow the guidance of your family tradition or Guru.