He is definitely right about the nettle leaf. Great stuff. Nettle leaf helps the adrenals, thyroid, liver, kidneys, intestines, etc.
What I do disagree with is the coffee enemas. They are using the caffeine to stimulate the liver, but caffeine also crashes the adrenals. So on one hand you are building the adrenals with the nettle leaf and licorice root, but tearing down the adrenals with the caffeine.
Using digestive bitters is a better way of cleansing the liver without crashing the adrenals in the process.