If you do choose to try a tea detox, the most important aspect isn't the kind of healthy tea you choose-it's what else you eat: "Tea can only be medicinal and detoxifying if your diet isn't taxing your system, which most American meals are guilty of," says Lagano. In order to truly detoxify your body, cut processed and fried foods, and up your intake of fruits, vegetables, whole grains, lean proteins, and anti-inflammatory fats like avocados and almonds, says Villacorta. Once your diet is clean and gentle on your body, detoxifying teas can begin to enhance your natural organ function.
I have experienced exactly the same. I bought Yogi Berry DeTox and after just the second day (one cup per day) I could not sleep a minute. It kept me up all night despite that there are no stimulants (e.g. caffeine) in this version of the tea, or at least none is indicated on the label. It seems that some of us just might be sensitive to some of the ingredients.

Iaso Tea is a detox tea that helps your body lose weight through detoxing of the body and reducing appetite to prevent overeating. The tea provides these detoxing effects through its natural ingredients that provide detoxing or diuretic effects. You can lose weight and promote a healthy lifestyle for your body by drinking this tea on a daily basis over a period of time. 


Skinny Bunny Tea is a collection of different teas, including their organic Matcha Tea, offering a simple solution to losing weight. These products claim to speed up weight loss and help to reduce hunger and cravings. While the Skinny Bunny Tea collection appears incredibly clean – gluten-free, dairy-free, and non-GMO – and likely beneficial to overall health, the company does not do an adequate job explaining why their tea-based weight loss program is different or superior to any of the dozens of other weight loss solutions available to consumers.
When keep consuming unhealthy food our body collect toxins that can't go our easily. Detox teas contain specific blends of natural ingredients which flush these toxins and chemicals we are consuming out of our vital organs. Those herbs are extremely effective for reducing cholesterol, body fat, improve digestive system and help our body losing weight.  
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