The research cautions against excessive consumption due to potential health risks associated with these beverages. According to researchers at the ICMR, tea and coffee contain caffeine, a compound that stimulates the central nervous system and can lead to physiological dependence.
The guidelines highlight the caffeine content in popular beverages: a 150ml cup of brewed coffee contains between 80 to 120 mg of caffeine, while instant coffee ranges from 50 to 65 mg. Tea contains approximately 30 to 65 mg of caffeine per serving.
The ICMR recommends a daily caffeine intake limit of 300 mg.
Additionally, the medical body advises abstaining from tea or coffee consumption at least an hour before and after meals. This precaution is due to the presence of tannins in these beverages, which can inhibit iron absorption in the body. Tannins bind to iron in the stomach, potentially leading to iron deficiency and conditions like anaemia. Moreover, excessive coffee consumption may elevate blood pressure and cause cardiac irregularities.
However, the guidelines note that drinking tea without milk offers certain health benefits, including improved blood circulation and a reduced risk of conditions like coronary artery disease and stomach cancer.In addition to moderating tea and coffee intake, the ICMR encourages a diet rich in fruits, vegetables, whole grains, lean meats, and seafood, while advocating for limitations on oil, sugar, and salt consumption.