Weight-loss teas are becoming common, with advertisements claiming dramatic results. Do the big promises match the results, or do they only match the price tag?
They found that the tea or tea extracts correlated with a weight reduction of about 4 kilograms (8.8 pounds) in the group of people who had the most risk factors for Type 2 diabetes and heart disease, and who also ate more healthy foods and exercised more. In the group who were not given healthy lifestyle advice and who did not have many risk factors, the average weight loss was only about 350 grams (.78 pounds).
These results suggest most of the weight loss was due to the impact of following the healthy lifestyle advice. There may also have been extra motivation to stick to that advice among those who were at high risk of other health problems.
- Senna, a laxative used to treat constipation
- Valerian root, which some evidence suggests may improve sleep quality
- Roots of the burdock plant, which are thought to contain chemicals that act as a diuretic (and increase urine production)
- Yerba mate, a plant common in South America. The leaves are used to make a drink high in polyphenols, a group of compounds found in plants that help the body defend itself against disease. A recent review suggests it may be helpful in lowering blood cholesterol levels.
- Dandelion leaf, which contains chemicals thought to have a diuretic effect, but there’s no strong evidence to support this effect.
- Celery seed, which can be used as a spice or flavoring. The active ingredient apiole has been thought to have anti-cancer effects (in mice).
- Calendula, an edible flower. A review of their medicinal use throughout history found potential wound-healing and anti-swelling properties.
While the prices of slimming teas vary, check the small print for disclaimers before you part with your money. They might read something like, “For maximum health benefits, this product should be consumed in conjunction with a low-calorie diet and daily exercise. Individual results may vary.”
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