20. Barley: 0.8 g of soluble fiber per servingĀ

Some people associate barley primarily with the brewing industry, but this nutritious ancient grain is also used to thicken soups, stews, or risottos.
A half-cup (79 g) of cooked barley contains 0.8 g of soluble fiber.
Like oats, it contains about 5.9% of the soluble fiber beta-glucan. And other soluble fiber in barley includes psyllium, pectin, and guar gum.