We've seen one published report involving an 88 - year - old woman who developed severe hypothyroidism (low production of thyroid hormones) and a related coma following consumption of an estimated 2 - 3 pounds of raw bok choy for several months. (whfoods.org)
If you aren't sure about raw bok choy this would also be great with spinach. (yupitsvegan.com)
If you don't blanch, you'll have crispy yet weirdly still raw bok choy. (bonappetit.com)