While there are some published studies on various ingredients often found in detox teas, I haven't seen any research on the teas themselves, particularly in the precise formulas they're prescribed (that research isn't required for the teas to be sold, by the way). That means that using detox teas leaves unanswered questions about if and how they work, how they should be used, how much may be too much, and possibly who shouldn't use them. If you're unsure, or are planning to start drinking them, talk to your doctor, nutritionist, or health care provider. Just be sure he or she doesn't have a vested interest in the sale of the product you're considering: If they happen to be selling or endorsing it, seek a second opinion.
One reason excess visceral fat is so harmful could be its location near the portal vein, which carries blood from the intestinal area to the liver. Substances released by visceral fat, including free fatty acids, enter the portal vein and travel to the liver, where they can influence the production of blood lipids. Visceral fat is directly linked with higher total cholesterol and LDL (bad) cholesterol, lower HDL (good) cholesterol, and insulin resistance.
There are two distinct types of fat in our bodies that differ by location and impact on overall health—subcutaneous fat and visceral fat. Subcutaneous fat is located under the skin and accounts for 90% of body fat. The remaining 10% is visceral fat, which is found deeper in the body, behind the abdominal muscles and around the intestines, liver, and other organs. Visceral fat is also known as intraabdominal fat because it collects in the abdominal cavity. It has long been known that body fat located in the abdominal cavity in the form of visceral fat poses serious risks to overall health.