in the mean time

I have found out what the difference is between soluble fiber and insoluble fiber.

I'm recapping it (again) because I want to remember it.

Both soluble and insoluble fiber are undigested. They are therefore not absorbed into the bloodstream. Instead of being used for energy, fiber is excreted from our bodies. Soluble fiber forms a gel when mixed with liquid, while insoluble fiber does not. Insoluble fiber passes through our intestines largely intact.

Soluble fiber picks up cholesterol, hormones, and other toxins in the intestines (excreted from the liver's bile duct) and carries it out of the body. This helps keep your body clean and healthy, and lowers cholesterol. If you don't have enough fiber in your diet, the cholesterol, hormones, and toxins are reabsorbed into the bloodstream, increasing your risk for cancers. This is because the female hormones, estrogen, cause all cells - healthy or cancerous - to grow. I won't get into the hormones in dairy. That's a whole 'nother story and deserves it's own post.

Insoluble fiber makes waste soft and bulky so it can move through the intestines easier. This makes insoluble fiber the top choice to get rid of constipation and keep yourself regular. Insoluble fiber also prevents cancer by moving toxic waste through the colon in less time, and keeping the pH in the intestines at an optimal level to prevent microbes from producing carcinogens.

Examples
Soluble fibers: oats, lentils, bean, peas, vegetables, fruits
Insoluble fibers: green beans, dark green leafy vegetables, fruit skins, yam skins, potato skins, other root veggie skins, whole wheat, brown rice

Many whole plant foods have both kinds of fiber.

More about fiber lowering cancer risk.

The Cancer Project book is so interesting! I love it.