In Paryushan, many Jains observe strict vrat and follow guidelines that avoid root/underground plant parts. Turmeric (haldi) is a rhizome (underground stem). Because of this, most strictly-observing Jains consider turmeric to be not allowed for internal consumption during Paryushan. Some people or communities may be more lenient and allow small amounts as a spice, but that is not the usual practice in strict varni/vrat observances.

Key points:

• Root/underground parts are commonly avoided during Paryushan by many Jains.
• Turmeric is typically treated as an underground plant part, so it is generally avoided in food during the vrat.
• Digambar and Shwetambar traditions can have slight differences in strictness; some communities may differ in allowance, but the prevalent guidance in strict observances is to avoid turmeric.

If you’re following a specific community’s rules (Digambar vs. Shwetambar, or a local guru’s guidance), it’s best to consult your own temple or teacher for the exact ruling in your case.