5 Side Effects of Green Tea: From Caffeine Overdose to Dehydration and More!

Green tea has long been touted as a 'weight-loss aid', a health drink for people struggling to lose weight. Experts vouch for two to three cups of green tea combined with a healthy diet plan in order to lose weight. Known for boosting metabolism and easing the process of digestion, it has been an amazing drink for many. However, as they say, anything in excess is bad, no matter how healthy a food it is. Does this wonder drink have any side effects? Can it cause any reverse effects in the body? How much green tea is enough to suit the daily requirement? Let's find out.According to Bangalore-based Nutritionist Dr. Anju Sood, "excess of green tea can dehydrate your body. Hence I wouldn't recommend more than three cups a day." Delhi-based Nutritionist Lokendra Tomar agrees, "Drinking excess amount of green tea increases acid in stomach due to high caffeine content. So drinking more than three cups of green tea can cause acidity, bloating, or acid reflux. Consuming excess green tea can also cause mineral deficiency, as it contains tannin that binds minerals like iron and further hinders its absorption in the body."Here are some side effects of green tea -1. Caffeine OverdoseLike any other tea, green tea consists of caffeine and excessive intake of caffeine can lead to health problems that include headache, sleeping disorders, irritability, anxiety and heartburn among others. Therefore, it is imperative to take not more than two or three cups a day._{Green tea consists of caffeine and excessive intake of caffeine can lead tosleeping disorders, irritability, anxiety.}2. Can Upset StomachDrinking green tea on an empty stomach can cause an upset stomach. Green tea has polyphenols known as tannins that increase stomach acid, which further leads to stomachache, nauseous feeling, burning sensation or even constipation. You must drink green tea in between meals or after a meal._{Drinking green tea on an empty stomach can cause stomachache.}3. Reduces the Iron Content in the BodyGreen tea has catechins that are known to boost metabolism and help reduce weight; however, its excessive consumption can cause reduced iron absorption in the body. It can be worse for those who already have an iron deficiency. You can reduce this effect by squeezing some lemon into the tea._{You can reduce this effect by squeezing some lemon into the tea.}4. Causes DehydrationGreen tea is a natural diuretic, which causes the body to lose water, therefore drinking excessive green tea can cause excessive urination leading to dehydration and electrolyte imbalances. Dehydration further can cause problems like headaches, lethargy and fatigue._{Dehydration further can cause problems like headaches, lethargy and fatigue.}5. Can Affect Those on MedicationsWhile it is safe for healthy people to have at least two-three cups of green tea daily, it may not be deemed as safe for those on medications. Combining green tea with antibiotics, stimulants, asthma medications or any other drug can pose a risk of liver damage. It is recommended to refer to a doctor before turning to green tea during medications._{Combining green tea with antibiotics or any other drug can pose a risk of liver damage}Green tea sure is a great aid to help you lose weight; however, moderation is the key here. In case of any doubts and confusions, it is always good to refer to a doctor and then take the recommended dose of green tea to avoid health problems in the long run.