In Jain Dharma, peanuts (singdāna / groundnut) are generally:

• Allowed in normal days for many Jain households

- Peanut is a seed/legume, not a true root-vegetable like potato, onion, garlic, etc. - Jain food rules mainly prohibit kand-mūl (root vegetables) because the whole plant is uprooted and a lot of microscopic life is harmed. - The edible part of peanut is the seed inside a pod, so many Jains consider it vihit (permissible) when taken with care.

• Often avoided in Paryushan / Chaturmās / special vows

- In periods of extra sanyam (restraint), many maryādās avoid peanuts because they grow underground and stored peanuts can have more tiny insects, fungus, etc. - So during Paryushan / Das Lakshan / special fasts, a lot of people do not take peanuts or peanut butter.

• Differences by tradition & family

- Some Digambar or Shwetambar groups and some families avoid peanuts completely to be on the safer side. - Others allow them on normal days but avoid during festivals or big vows.

Practical guidance:

• If your family / sangh allows peanuts, you may eat them:

- well‑dried, clean, preferably roasted - not sprouted, not infested - cooked and eaten fresh (not old, fermented, or kept overnight)

• If your family / guru / sangh avoids peanuts, you should also avoid them and follow that maryādā.

So: Yes, peanuts are allowed for many Jains on ordinary days, but practice varies. For safety of ahiṁsā and obedience to discipline, always follow your own guru, sangh, and family rules.