Answer

Tomatoes are not universally used in Shwetambar ekasana. In many Jain traditions, especially stricter observances, tomatoes are avoided.

Explanation

• Ekasana means eating only one meal in a sitting.
• In Shwetambar Jain practice, food rules can differ by family, region, and level of observance.
• Many Jains avoid tomatoes because they are considered less suitable for strict Jain diet, especially in vrat or religious discipline.
• However, some households may still use them depending on their specific tradition.

Spiritual Understanding

The purpose of Jain food discipline is self-control, purity, and ahimsa. So, the exact rules for ekasana are often followed with care and sincerity according to one's tradition.

Takeaway

If you are asking generally: tomatoes are often avoided in strict Shwetambar ekasana, but practices can vary.