1. Those produced by the normal physiological processes within the body
2. Those produced by the abnormally functioning gastrointestinal (GI) tract
3. Substances that come from outside
The first two categories are called endotoxins, which means coming from inside, from the Green work endon or within. The third category is called exotoxins, from ex or outside.
There are 50 to 100 trillion cells in an average body. Each cell produces waste products and dumps them into the blood. These toxins need to be dealt with and eliminated. Fortunately, we have a special detoxification system that is designed to remove waste products from the body. It consists of the liver, kidneys, intestine, lungs, and the skin. Our detoxification system can usually handle internally produced toxins without difficulties.
The problem is that today there are tens of thousands of synthetic chemicals in our environment that are potentially toxic. Industrial chemicals, pesticides, components of plastic, medications, toxic metals (lead, mercury, aluminum, cadmium), cleaning products, hair sprays and other personal care products, the list goes on and on.
As a result, practically everyone has many different toxins in their body. And this is not only true about people. Toxins have been also detected in all kinds of animals, from whales to turtles.
The endotoxins, the ones that we make ourselves, are water-soluble. They require only minimal processing and are easily removed by the kidneys. Not so with the exotoxins. Most of them are fat-soluble, so they do not dissolve in the blood. Instead, they accumulate in the fatty tissues and in organs, such as abdominal fat, brain, heart, etc.