Jains do not eat garlic because it is classified as a "root vegetable" and also as part of the group called "five pungent vegetables" (also known as "panch kanda" or "panch shalya"), which includes garlic, onion, leeks, shallots, and hingu (asafoetida).

The reasons for avoiding garlic in Jainism are:

1. Ahimsa (Non-violence): Uprooting garlic involves killing the entire plant, including numerous microorganisms and tiny life forms present in the soil and around the roots, thus resulting in greater violence (himsa) compared to plucking fruits or leaves.

1. Spiritual and Mental Clarity: Garlic (along with other pungent root vegetables) is considered to increase passions and agitation, which can disturb meditation and spiritual practices. Jains aim to cultivate a calm and peaceful mind, and such foods are believed to hinder this process.

1. Sattvic Diet: Jain dietary practices emphasize eating foods that are pure, light, and conducive to spiritual growth (sattvic). Garlic is considered tamasic and rajasic, meaning it can increase ignorance, lethargy, or restlessness.

Therefore, to uphold the principle of non-violence and maintain spiritual purity, Jains abstain from consuming garlic.