I have butchered hundreds of chickens on my farm. The livers usually have 3 colors. One third will be red. One third will be tan. And on third will be green. My research indicates that the reddish-purple color of a healthy liver comes from iodine. Young chickens will usually have a dark reddish-purple liver that is tough as nails, you can't cut it. Since our soil has no iodine left, the grain we feed our livestock has no iodine in it. As chickens or any mammal ages, they run out of iodine and the liver becomes a tan color. This tan liver is often so fragile it will break apart in your hands. Since iodine is a disinfectant and the tan liver has no iodine to kill bacteria, the tan livers would have eventually filled with bacteria. The green colored livers are so sick the bile has become infected and the liver is full of green infected bile. People who eat these chickens will acquire the same results and become iodine deficient. They will have all kinds of diseases like insomnia, acid-reflux disease, fatty liver disease, gall stones, dry skin, SID, ADD, birth defects, cancer and diabetes just to name a few. In fact they say that almost all of our health problems from asthma to psoriasis are caused by eating these grains and livestock that have no appreciable amounts of iodine in them. Each generation gets worse and has more health problems. I have learned to cure my chickens and heal my family by putting one drop of iodine in each gallon of livestock drinking water for my chickens, cows and pigs. I also add iodine to my garden. If all farmers would do this, America would not need the health care industry or health insurance. The pharmaceutical companies would go out of business and just disappear. This is one thing they do not want anyone to know. Please tell everyone! There are dozens of pages on the Web explaining the iodine deficiency epidemic and safe ways to take iodine. The AMA doctors also have pages warning you to never take any iodine supplements. Guess why?