Better read this, liver cleansers...
I think a little olive oil is good every day, but since I want to know BOTH sides of the argument before I do something drastic to my body I checked out a medical reality check website. Here is just a sample of what I found:
"After the first day of fasting, liver glycogen is depleted. Since the body tries to maintain serum glucose within a normal range, protein stores from muscle (and eventually even from organs such as the heart and kidneys), are broken down to supply amino acids which can be converted to glucose. After a week-long fast, the loss of muscle tissue may comprise as much as one-third of the total weight loss.
A prolonged fast may lead to anemia, impairment of liver function, kidney stones, postural hypotension, mineral imbalances, and other undesirable side effects. Deaths from prolonged fasting have occurred, usually in people who believed this would "purify" their body or cure them of some disease"