The harmful tea many consume: Potential risks to intestines and brain

In countries such as China and the United Kingdom, tea drinking is a tradition steeped in centuries of history. Teas of all varieties line store shelves, ranging from black, fruit and herbal, to red, green, and white. While some carry a host of health benefits, others are best avoided.

Several teas advertised for their cleansing and slimming properties are readily available on the market. Some can even create a dependency. Experts highlight the potential harm in consuming senna leaves, a component in some cleansing teas. Such teas can potentially disrupt normal bowel movements. Excessive consumption may result in diarrhea, leading to a risk of dehydration and vitamin and mineral deficiencies. This is especially harmful to pregnant women, as it can deprive both them and their unborn child of essential nutrients.

Expectant mothers often face dietary restrictions. They must avoid raw meat, sushi, and unpasteurized products. Similarly, certain teas, like the Pu-erh variety known for its vitamin-flushing capabilities, should be avoided. However, the most harmful is black tea with added lemon. Why? Tea leaves contain aluminum, which the human body starts to assimilate only once lemon is added to the drink. Such a combination may lead to brain damage and potentially the development of Alzheimer's disease. A safer option would be to have tea with milk (although moderation is key).

Expectant mothers must also exercise caution with herbal teas. Not all are beneficial and some, like St. John’s Wort, yarrow, ginseng, sage, savory, wormwood, and fenugreek, can pose potential risks.