In Rasparityāg (renunciation of taste/luxury in food), the main items to be given up are the six rasas:

1. Madhur rasa – sweet
2. Amla rasa – sour
3. Lavaṇa rasa – salty
4. Tikta rasa – bitter
5. Kaṭu rasa – pungent/spicy
6. Kaṣāya rasa – astringent

In practical Jain observance, it also means reducing attachment to:

• tasty and rich foods,
• over-spiced food,
• indulgent eating for pleasure,
• desire for variety and delicacy in food.

The purpose of Rasparityāg is to develop detachment, self-control, and simplicity in daily living, while supporting Ahimsa and spiritual discipline.

If you want, I can also give the common Jain categories of food renunciation in simple points.