Why does some soymilk have fiber, but others do not?

Question

I often drink Costco soymilk because it`s cheap, and it has one gram of fiber, while a more expensive brand, Westsoy, I think, has 3 or 4 grams. And then I sometimes drink locally (San Diego) made soymilk that has no fiber.
Now all of these have roughly the same ingredients, ranging from simply soybeans and water to soybeans, carrageenan, sea salt, and some added vitamins. But I have trouble believing any of the added stuff contains fiber. So are there ways to make soymilk in which the fiber is either retained or lost, or is this an issue of companies being careless with their labeling?
Additionally, the protein content fluctuates between brands, but I assumed this had to do with the concentration of soybeans to water.

Answer 1

"Soymilk" is just water that raw soybeans have been boiled in, so the fiber content depends on the beans & the time of boiling, also to some extent on how well the beans are then filtered from the mixture.

You should not be looking to soymilk to provide any significant percentage of your fiber needs anyway! Eat a piece of fruit or a bowl of cereal!

Answer 2

Does Milk Have Fiber

Answer 3

My guess would be the same as your assumption about the protein....since soybeans are a plant food and have natural fiber, the more soybeans concentrated in the soymilk, the more fiber it would have.

Answer 4

Yikes, read before you post. Don't you think if there was a proven link between Soy milk and breast cancer it would be well known? Come on. You were just talking to a grossly uninformed person.

Answer 5

I'm guessing its to make it thicker and more like whole cow's milk in mouthfeel than anything else......