Jainism emphasizes ahimsa (non-violence) in all aspects of life, including food. If by “feeding in the Jain religion” you mean diet and what is allowed, here is a simple overview:

• Core principle: Avoid causing harm to living beings. This leads many Jains to be strict vegetarians, and many also avoid root vegetables (like potatoes, onions, garlic) because harvesting them can kill many plants and organisms.
• Common practice: A lacto-vegetarian diet is widespread among lay Jains. Some stricter practitioners also avoid honey and fermented foods.
• Eating with care: Jains prefer fresh, minimally processed food and often choose foods that are simple and easy to digest. They may avoid food after sunset to reduce harm to small insects and to honor traditional observances of cleanliness and mindfulness.
• Fasting and special observances: Fasting (upvas) and vegetarian fasting days (e.g., Paryushan, Nav-Tass) are common ways to purify mind and body. Some ascendents or monastics follow stricter fasting rules.
• Monastic rules: Digambar and Śvetāmbara monks live by different codes. Digambar monks typically do not own or consume food that has been prepared by others and may accept alms in very specific ways; Śvetāmbara monks may have different规定 about alms and meals. In both traditions, the aim is to minimize harm, maintain purity, and focus the mind on spiritual goals.

If you had a different sense of “feeding” (for example, feeding others a Jain meal, charitable feeding, or a discussion of ritual meals), tell me a bit more and I’ll tailor the explanation accordingly within Jain doctrinal guidance.