In Jain Dharma, the focus is on ahimsa (non-violence) and the karmic consequences of harming living beings. While a biological “food chain” is a scientific concept, Jain practice does not endorse harming beings for food.

Key points:

• Meat-eating is generally disliked and avoided in both Digambar and Shwetambar traditions because it involves killing living beings and accrues karmic bondage.
• Many Jains also avoid harming plants, and some avoid root vegetables, since uprooting harms the plant.
• The emphasis is on reducing violence and living with minimal harm, rather than validating any food-chain mechanism.

In short: the natural existence of a food chain is a scientific fact, but Jainism asks adherents to minimize and deliberately avoid causing harm in eating and sourcing food, in line with ahimsa.