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HomeJournalsImpact of Tea and Coffee Consumption on Health by ICMR

Impact of Tea and Coffee Consumption on Health by ICMR


Tea and coffee are two of the most widely consumed beverages in the world, beloved for their rich flavors, warm aromas, and energizing effects. However, there has been ongoing debate about the health impact of these beverages, with some studies suggesting both positive and negative effects on health. The Indian Council of Medical Research (ICMR) has conducted in-depth research on the effects of tea and coffee consumption on health, shedding light on the potential benefits and risks associated with these popular drinks.

The Benefits of Tea Consumption

Tea, particularly green tea, has long been hailed for its health benefits. Here are some of the positive impacts of tea consumption on health:

1. Rich in Antioxidants: Tea, especially green tea, is high in antioxidants such as catechins and epicatechins, which help neutralize harmful free radicals in the body and reduce oxidative stress.

2. Heart Health: Studies have shown that regular tea consumption may lower the risk of heart disease and stroke. The antioxidant compounds in tea help improve heart health by reducing inflammation and improving blood vessel function.

3. Improved Brain Function: The caffeine and L-theanine in tea can have a synergistic effect, leading to improved brain function, focus, and concentration.

4. Weight Management: Some research suggests that the compounds in green tea can aid in weight loss by boosting metabolism and promoting fat burning.

The Benefits of Coffee Consumption

Coffee is another beverage that has been the subject of extensive research. Here are some of the potential benefits of coffee consumption:

1. Rich in Antioxidants: Like tea, coffee is a major source of antioxidants. Chlorogenic acid and caffeic acid are two key compounds in coffee that contribute to its antioxidant properties.

2. Energy and Focus: The caffeine in coffee is a well-known stimulant that can help increase alertness, improve mood, and enhance cognitive function.

3. Lower Risk of certain Diseases: Some studies have suggested that regular coffee consumption may reduce the risk of certain diseases, including Parkinson’s disease, Alzheimer’s disease, and type 2 diabetes.

4. Physical Performance: Caffeine in coffee can also enhance physical performance by increasing adrenaline levels and breaking down body fat for use as fuel.

Potential Risks

While tea and coffee offer numerous health benefits, it’s important to be aware of potential risks associated with their consumption:

1. Caffeine Sensitivity: Some individuals are more sensitive to caffeine than others and may experience side effects such as anxiety, insomnia, rapid heartbeat, or digestive issues.

2. Bone Health: Excessive caffeine consumption has been linked to a higher risk of osteoporosis and bone fractures in some studies.

3. Staining of Teeth: Both tea and coffee contain tannins, which can lead to staining of teeth over time.

4. Acid Reflux: The acidic nature of both beverages can exacerbate symptoms of acid reflux or heartburn in some individuals.

5. Additives: Sugary syrups, whipped cream, and excessive amounts of milk added to tea and coffee can increase calorie intake and negate some of the health benefits of these beverages.

ICMR Recommendations

The Indian Council of Medical Research has provided guidelines on tea and coffee consumption to promote health and well-being:

1. Moderation is Key: ICMR recommends moderate consumption of both tea and coffee to enjoy their benefits without going overboard on caffeine intake.

2. Stay Hydrated: It’s important to balance tea and coffee consumption with adequate water intake to prevent dehydration.

3. Be Mindful of Additives: Opt for unsweetened tea and coffee or use natural sweeteners like honey or stevia to avoid excessive sugar intake.

4. Consider Individual Health Factors: Factors such as age, underlying health conditions, and medication use can influence how tea and coffee affect an individual’s health. Consult a healthcare provider if you have concerns.

5. Variety is Key: Explore different types of tea and coffee to benefit from a diverse range of antioxidants and phytonutrients.

Frequently Asked Questions (FAQs)

1. Is it better to drink tea or coffee for overall health?
– Both tea and coffee offer unique health benefits, so the choice between the two comes down to individual preference and tolerance to caffeine.

2. Can tea and coffee help with weight loss?
– While some studies suggest that green tea and coffee can aid in weight loss, it’s important to focus on a balanced diet and regular exercise for sustainable weight management.

3. How much caffeine is safe to consume in a day?
– The general recommendation is to limit caffeine intake to 400 milligrams per day for most healthy adults, which is roughly equivalent to 4 cups of brewed coffee.

4. Are decaffeinated versions of tea and coffee healthier?
– Decaffeinated versions of tea and coffee can be a good option for individuals looking to reduce their caffeine intake. However, they may have lower antioxidant levels compared to their regular counterparts.

5. Can tea and coffee consumption have an impact on sleep quality?
– Consuming tea or coffee, particularly in the evening, can disrupt sleep patterns in some individuals due to the stimulant effects of caffeine. It’s advisable to limit caffeine intake close to bedtime.

6. Are there any specific health conditions that may be worsened by tea or coffee consumption?
– Individuals with certain health conditions such as anxiety disorders, irritable bowel syndrome, or heart arrhythmias may experience exacerbation of symptoms with high caffeine intake. Consulting a healthcare provider is recommended in such cases.

7. How can one reduce the staining effects of tea and coffee on teeth?
– Rinsing the mouth with water after consuming tea or coffee, using a straw to minimize contact with teeth, and practicing good oral hygiene can help reduce the staining effects on teeth.


Tea and coffee are beloved beverages enjoyed by people around the world, and when consumed in moderation, they can be part of a healthy lifestyle. The research conducted by the Indian Council of Medical Research sheds light on the potential benefits and risks associated with tea and coffee consumption, providing valuable insights for individuals looking to make informed choices about their beverage preferences. By understanding the impact of tea and coffee on health and following sensible consumption practices, individuals can savor the flavors of these beverages while reaping their potential health benefits.