In Jainism, there is no specific prohibition against dragon fruit. Jain dietaryprinciples emphasize non-violence (ahimsa) toward all living beings and generally allow fruits, provided harvesting does not involve harming insects or uprooting plants. Dragon fruit is a fruit from a cactus and is not a root vegetable, so it is considered permissible in a Jain diet, assuming it’s grown and handled without causing harm.

If you want, I can look for any particular Jain texts or reflections that discuss fruits more generally.