Well, you can, but different methods can be more extreme than others. I'm not a doctor, but here's what I do. I'm assuming that you dont have any medical diagnosis of a liver problem. Do not do liver cleanses if you do.

• Start with a few days at a time. Don't be extreme. It can make you sick. Try 3 days.
• Drink plenty of water.
• No caffeine.
• No alcohol.
• No high fructose corn syrup. (processed through the liver)
• No ibuprofen or anything you can avoid taking that is processed through the liver.
• Eat "cleanly". Limit dairy, red meat, nothing fried. No white sugar. Sweet potatoes, organic chicken & turkey, and cold water fish like salmon and mackrel are good. Eat lots of fruit and veggies. Try to go for stuff that isn't processed: boiled red potatoes = good, bread = not so good.
• A good flavoring/spice is garlic if you can stomach it. It is considered healthy for the liver.
• Eat fresh parsley & celery if you can. They are natural and gentle diuretics, so you will get rid of yuckiness faster. Look for soup recipes with lots of parsley in them.
• Another spice that is good for the liver is rosemary.
• Use red pepper (cayenne) and not black pepper during a cleanse.
• After 3 says, gradually reintroduce the omitted foods into your diet. Don't dump a bunch of crap on your body all at once.

Did this work well for you without extremes? Then try it the next month for another 3 days but this time drink herbal tea with "liver cleansing" herbs. Start with an 8 oz. cup no more than 3 times a day. I make my own, but lots of natural food stores sell prepackaged versions. Such teas taste very bitter and it is ok to use a tsp of honey per 8 oz. of tea. Herbs to look for:

• burdock, yellow dock, any of the "docks".
• red clover
• milk thistle
• dandelion root
• licorice root
• ginger root
• chicory root

Now you will read about much more radical cleanses. I don't think those are a good idea. I also believe in backing off if you feel sicker than "general malaise". If you take maintenance drugs that you cannot stop, I would strongly encourage you to do some research on drug/herb interactions - maybe avoid the tea altogether. "Diet cleanses" by themselves can be pretty powerful.