The Indian Council of Medical Research (ICMR) has advised moderation in the consumption of tea and coffee, and recently provided 17 new dietary guidelines in partnership with the National Institute of Nutrition (NIN), aiming to promote healthy eating habits. According to NDTV, the guidelines emphasize the importance of a diverse diet, an active lifestyle, and caution against excessive tea and coffee consumption due to potential health concerns.
ICMR researchers explained that tea and coffee contain caffeine, which stimulates the central nervous system and promotes physiological dependence. The guidelines highlighted the caffeine content in popular beverages, noting that a 150 ml cup of brewed coffee contains 80 - 120 mg of caffeine, instant coffee contains 50 - 65 mg, and tea contains 30 - 65 mg, recommending a daily limit of 300 mg of caffeine.
The Indian medical authority also advised avoiding tea or coffee for at least one hour before and after meals, as they contain tannins that can reduce iron absorption in the body. Tannins bind with iron in the stomach, making it difficult for the body to absorb iron properly, potentially leading to iron deficiency and health issues such as anemia. Furthermore, researchers noted that excessive coffee consumption could also cause high blood pressure and irregular heartbeat.
The guidelines stated that drinking tea without milk has different benefits, such as improving blood circulation and reducing the risk of diseases like coronary artery disease and stomach cancer. Researchers also recommended following a diet rich in fruits, vegetables, whole grains, lean meats, and seafood, while limiting oil, sugar, and salt intake.