In Jainism there isn’t a notion of a single god telling humanity “what to eat” at the world’s beginning. Jain scriptures focus on ahimsa (non-violence) and the aim of minimizing harm to all living beings. Because of this, a vegetarian diet is the ideal and most commonly practiced within Jainism, since it causes the least harm to other beings.

If you’re looking for more on Jain views about diet and non-violence, I can share concise points from Jain teachings or point you to a specific Jain scripture or explanation.