To boost immunity, specialists recommend drinking 3–5 cups of tea per day. It is known that many teas, especially herbal ones, are rich in antioxidants that boost immunity, as well as other nutrients that help enhance the body’s defenses.

However, it’s important to remember that tea, like any product, can be harmful if consumed excessively. Drinking more than 9 cups a day would be excessive, especially when it comes to caffeinated teas. Too much caffeine can lead to anxiety, unwanted stress, sleep disturbances, upset stomach, and headaches.

Additionally, excessive tea consumption may negatively affect iron absorption in the body, which is important to consider, especially for individuals prone to anemia. Tolerance to caffeine varies from person to person. If you notice unwanted side effects after consuming tea, you should reduce the amount consumed or switch to varieties with low caffeine content. For example, herbal teas often contain no caffeine at all and can be a good alternative for those seeking a beverage that benefits the immune system but want to avoid side effects.