Jain food and vegan food are similar in some ways, but they are not the same.

Main difference

Vegan food

• Does not include any animal products:

- milk - curd - butter - ghee - cheese - honey - eggs

• Veganism is mainly about avoiding animal exploitation.

Jain food

• Also avoids all violence toward living beings as much as possible.
• So Jain food is usually:

- strictly vegetarian - no eggs - no meat - no fish - no honey

• But many Jains also avoid or limit:

- root vegetables like onion, garlic, potato, carrot, etc., because uprooting them destroys the whole plant and can involve more harm to living beings in the soil. - food after sunset, in many traditions - fermented foods in some practices

Important point

• Vegan food can still include root vegetables, onion, garlic, and many plant-based items that Jains avoid.
• Jain food may include dairy in many traditions, because traditional Jain diet is often lacto-vegetarian, not vegan.

Short answer

• Vegan = no animal products
• Jain food = strict non-violence based diet, often more restrictive than vegan food

So, Jain food is usually stricter than vegan food.