You’ve seen them on the shelves of products to food health and internet teas that promise to increase your metabolism , kill cravings, detoxify you and help you drop pounds. They are sold under different names, but embracing the promise of one and the same: drink this tea, and you will lose weight , and even to have a cleaner system to load.

It sounds too good to be true, and experts say that. “At best , they are a waste of your money, and at worst, they are dangerous,” Jessica Cording , A RD in New York, according to the SELF. Karen Ansel , MS, RDN, co healthy in a hurry: easy, Good-For-You Recipes for every meal of the day . “a publicity stunt”, agrees, saying that these teas SELF

“The tea does contain compounds such as polyphenols and caffeine, which [may slightly increase] metabolism, but this increase is not enough to have a significant effect on body weight,” she says. “If so, the tea producers will rake in millions millions of dollars. ” Furthermore, so-called weight loss teas often contain added ingredients that have health promotion benefits of pure tea and may not be safe, as well as various stimulants.

Some teas, you may have seen them all over Instagram-also ensure detoxification you that Ansel says is a fake. “Any tea, which claims that detoxify your system pure deception,” she says. “Your body has its own built-in system detoxication, which operates 24/7, the liver, which dismantles the toxins and your kidneys, which flush out these wastes. ” There’s nothing in tea (or any other food product), which can detoxify you, she adds. in fact, fact, these teas can just make you get to the bathroom more often, creating the illusion of detoxification. First of all, caffeine can all make you poop . But some of these teas have additional laxative effects caused by senna, natural medicine, which irritates the mucous membrane of your intestines says Ansel. That , however, not all uses of senna is an FDA-approved, and laxatives are not smart or safe method of weight loss .

Such questions are even available in large quantities, when it comes to conventional teas. Some green tea manufacturers promise that their products will increase your metabolism, and some Oolong teas are told that they can burn fat , as some claim, red teas, to reduce appetite.

Most studies on tea and weight loss has been conducted on green tea, and he believed that his combination of caffeine and polyphenols may have little effect on metabolism, says Ansel. That , however, Cording indicates that the effect is largely insignificant. ” Drink green tea in a short period of time to lose weight, most likely, will not lead to significant weight loss, “she says. Often cited 2009 meta-analysis, published in the International journal of Obesity found that green tea was a” small positive effect “on weight loss and weight maintenance, but the researchers say their findings “should be treated with caution”, as they were not able to prove that green tea actually cause weight loss, only that there was a link. However, not all studies were able to prove the connection, resulting in what many researchers say the effect of green tea on weight loss is “inconclusive”.

This does not mean that drinking green tea has its advantages, it just will not help you lose weight as a healthy diet and regular exercise will. Cording indicates that green tea may provide other benefits to health due to the high level of polyphenols (such as flavonoids and catechins), which have been studied for their antioxidant activity.

Oolong, according to rumors, have some benefits of weight loss, but Ancel says that there was not much evidence to support it. One study, published in the American Journal of Clinical Nutrition in 2013 showed that oolong and other teas are not clinically significant result on . weight loss With regard roobois tea, Ancel says that it has not been studied in the same way as the other varieties, “but there is no conclusive evidence that it has any – any real impact on appetite.”

However, she points out, all kinds of tea can help control your appetite indirectly by providing calorie-free liquid. “Drinking water can help you [to eat more consciously] so that it makes complete sense that the content of tea will have the same benefits, “she says.

If weight loss is the goal of your, Cording recommends that you evaluate your diet and exercise habits rather than to refer to beverages that promise to help you lose weight or detox you. “Assessing whether you will benefit from dietary changes, or integrate more physical activity, “she says. Changing these factors should get you much farther than weight loss or detox tea.