Bok Choy

Bok choy is grown for its leaves and stalks, rather than recovered as a processing leftover. Suppliers offer it dehydrated for pet food. The label does not reveal whether a maker used fresh or dried bok choy.^2,4,5

1. 01 // Source Leafy plants Growers harvest the leaves and thick stalks while bok choy is still a leafy vegetable.
2. 02 // Process Cleaned and cut Harvested plants are cleaned and cut into pieces before sale or further processing.
3. 03 // Process Dehydrated A pet food supplier offers dried bok choy among its dehydrated vegetables.
4. 04 // Output Dry bok choy Dried vegetable reaches the kibble plant, where dry ingredients are commonly ground before mixing.

1. 01

   Adds some fiber

   Bok choy contains dietary fiber. Its contribution to the finished food depends on the recipe amount, which the ingredient list does not disclose.^2,3

2. 02

   Names a familiar vegetable

   Brands describe bok choy as a source of vitamins and minerals. That gives shoppers a recognizable ingredient, but its name alone says nothing about the vitamin dose.^3,10

3. 03

   Fits dry mixing

   A supplier offers dehydrated bok choy for pet food, and dry vegetables are commonly ground before mixing. Neither source reports its price or production volume.^4,5

How much No standard recipe percentage is published; ingredient order shows relative weight, while the absolute amount remains undisclosed.³

1. Brands say

   Bok choy adds dietary fiber

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A university table lists 1 g of dietary fiber per 100 g of raw bok choy, equal to about 21.4% of its dry matter. The content is clear; the amount a dog receives depends on the undisclosed recipe amount.^2,3

2. Owners say

   Bok choy is dangerous for dogs

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   One dog developed methemoglobinemia after eating a large volume of fermented bok choy. The authors could not prove that bok choy caused it. A case involving fermented leftovers does not show a risk from ordinary kibble amounts.¹

3. Owners say

   Its antioxidants protect dogs from disease

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   Researchers tested extracts from 3 pak choi cultivars in laboratory antioxidant assays. They did not feed bok choy to dogs or measure disease. Activity in a test tube does not demonstrate protection from bok choy in food.^6,8

4. Owners say

   Bok choy in kibble damages the thyroid

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A review describes a thyroid mechanism for raw cruciferous vegetables and one human case after months of large intake. It reports no dog trial showing thyroid harm from bok choy in kibble.⁹

5. Owners say

   Its vitamin C strengthens dogs' immunity

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   Pet advice links bok choy's vitamin C to immune support. Dogs make vitamin C in their liver and have no AAFCO dietary requirement for it. No bok choy feeding trial demonstrates an immune benefit.^7,8