Kashrut, pursued with determination, prepares the soul to avoid gluttony. The strictures of Halal do the same. Both are frameworks that demand consideration before consumption.
For its part, Christianity identifies gluttony as a sin, but interestingly does not provide a practical path to dodge the temptation in a prosperous society to become a foodie. Observation only, not at all a criticism.
To my knowledge, there are evangelistic ministries that consider the question, but such discussions tend to hit a theological dead end with Paul’s original rejection of the corpus of Torah law.
This suggests another reason why it is incumbent upon us as Jews to interact with non-Jews to promote their knowledge of our laws and practice. We are not now, nor should we ever be, a proselytizing faith. But as others faiths evolve and they seek answers in our practice, we have no reason to hold back that knowledge. On the contrary, an argument can be made that we should encourage such study, provided it is not with the intention of undermining or destroying us.