SAN ANTONIO - If you search for a liver detox online, you'll see dozens of products that offer a quick fix, whether you're worried about fatty liver disease or a night of drinking.

"The liver is a very complex organ," said Dr. Douglas Denham, the medical director at Clinical Trials of Texas. "It does a lot of things, very involved in fat metabolism in both creating new fat and breaking down old fat kind of thing."

You want to take care of your liver, but are supplements worth it or worthless? There's no evidence to show detoxes work. Some juice cleanses can even make you sick. A natural "detox" with antioxidants from coffee, green tea, raw garlic, and fruits and vegetables can protect liver cells from damage. Instead of a pill, get your vitamin E from almonds, sunflower seeds, and plant-based oils. But if you're really concerned, talk to your doctor.

"You are overweight, you have diabetes, you have hypertension, you have cholesterol issues, I think it's something to talk to them about," explained Denham.

The plant milk thistle has been said to benefit the liver, and while some studies showed the supplement reduced inflammation, others have found there is no benefit whatsoever.