Coffee
may be one of the world's favourite beverages but it is also surrounded by countless myths and conflicting advice. Should you drink it first thing in the morning? Can it affect fertility or pregnancy? Is it really good for your liver? And why do some people feel jittery, sleepy or even develop headaches after a cup? The answer is not always straightforward because coffee affects everyone differently, depending on factors such as genetics, caffeine sensitivity, age and overall health. To separate fact from fiction, we spoke to eight doctors across different specialties, who answer some of the most commonly asked questions about coffee, helping you understand when, how and how much coffee is actually good for you.
- Dr. Eileen Canday, Head of Nutrition & Dietetics, Sir. H.N. Reliance Foundation Hospital, Mumbai
- Dr. Muskaan Chhabra, Fertility Specialist, Birla Fertility & IVF, Lajpat Nagar
- Dr. Niranjan Singh, Additional Director -Internal Medicine, CK Birla Hospitals Jaipur
- Dr. Vipulroy Rathod, Director of Gastroenterology, Fortis Hospital Mulund
- Dr. Ashok Kumar, Senior Consultant & Head, Medical Gastroenterology, Dharmshila Narayana Superspeciality Hospital, Delhi
- Dr. Pankaj Soni, Principal Director, Internal Medicine, Max Smart Hospital, Saket
- Dr. Shubha Vivekan, Senior Consultant Gastroenterology & Hepatology, Apollo Speciality Hospitals, Vanagaram Chennai
- Tehseen Siddiqui, Cheif Dietician, Saifee Hospital, Mumbai
What's The Best Time To Drink My First Cup Of Coffee?Dr. Shubha recommends having your first cup of coffee 30-60 minutes after waking up, preferably after a light breakfast rather than on an empty stomach, as caffeine may worsen acidity or acid reflux in some people. Dr. Pankaj suggests waiting 60-90 minutes after waking, explaining that cortisol, which is the body's natural alertness hormone, is already at its peak in the morning. Delaying your coffee allows caffeine to work more effectively and may help prevent tolerance from developing too quickly. Both experts also advise avoiding late-evening coffee, with Dr. Shubha recommending your last cup be at least six hours before bedtime to protect sleep quality.
What's The Healthiest Way To Brew Coffee?According to dietitian Tehseen, the healthiest brewing method depends on your health goals. If you are trying to manage your cholesterol, paper-filtered coffee (such as drip or pour-over) is the better choice because the paper filter traps natural coffee oils called diterpenes, including cafestol, which can raise LDL ("bad") cholesterol. In contrast, French press and other unfiltered brewing methods allow these oils to pass into your cup. Tehseen stresses that you don't have to give up coffee to protect your heart - simply switching to paper-filtered coffee, while limiting excess sugar and cream, can make it a healthier choice.
My Pre-teen Daughter Has Cold Coffee Everyday, Is It Safe To Introduce Coffee Around This Age?Experts advise against introducing coffee as a daily habit for pre-teens. Dr. Eileen says the American Academy of Pediatrics recommends avoiding caffeine for children under 12, as their developing nervous systems are more sensitive to its effects on sleep, mood, anxiety, heart rate and concentration. She also points out that cold coffee is often loaded with added sugar. Dr. Shubha further adds that regular consumption can contribute to poor sleep, weight gain, insulin resistance, dental cavities, and even anxiety or palpitations in some children. Instead of a daily drink, cold coffee is best kept as an occasional treat.
Can Coffee Be Considered Good Enough As A Pre-workout?Yes, black coffee can serve as an effective natural pre-workout for many people. Dr. Eileen explains that caffeine can boost your alertness and also reduce the feeling of fatigue. Also, it may improve endurance, strength and overall exercise performance. For the best results, she recommends drinking it 30-60 minutes before a workout. However, Dr. Vipulroy cautions against consuming black coffee on an empty stomach, as it can trigger acidity, acid reflux and even an urgent bowel movement during exercise.
I Drink 3-4 Cups Of Coffee Every Day. Is That Too Much And How Do I Know If It Is Affecting My Health?For most healthy adults, 3-4 cups of plain black coffee a day (up to 400 mg of caffeine) is generally considered safe, says Dr. Shubha. She adds that moderate consumption of unsweetened black coffee has been linked to a lower risk of fatty liver disease, cirrhosis, liver cancer, gallstones and even colorectal cancer. However, Dr. Pankaj points out that this amount is close to the recommended daily caffeine limit. If you are experiencing poor sleep, anxiety, palpitations, acid reflux, digestive discomfort or frequent headaches, your coffee intake may be affecting your health. Your ideal limit ultimately depends on your individual caffeine tolerance.
Is Bulletproof Coffee Actually Healthy?Having black coffee with a spoon of ghee first thing in the morning is generally safe for most healthy adults. However, experts say that there is no strong scientific evidence to support the health claims surrounding this trend. Dr. Eileen explains that while ghee may slightly slow caffeine absorption and reduce jitteriness, it also adds saturated fat and calories without providing fibre or protein. Dr. Ashok says, "Some people may experience acid reflux or digestive discomfort, while others tolerate it well. Rather than viewing it as a health hack, experts recommend treating it as a personal dietary choice and consuming it in moderation."
Why Do I Feel Jittery After Drinking Coffee?Feeling jittery after coffee is usually a sign that your body has had more caffeine than it can comfortably handle. Dr. Eileen explains that caffeine blocks adenosine - the brain chemical that promotes relaxation and sleep - while triggering adrenaline release. This makes you feel more alert but also increases your heart rate. Dr. Ashok adds that genetics, anxiety levels, poor sleep, drinking coffee on an empty stomach, or consuming it too quickly can all amplify these effects. Experts recommend reducing your portion size, opting for a milder brew, drinking coffee after a meal, and avoiding multiple caffeinated beverages together. If symptoms include chest pain, a racing heartbeat or severe anxiety, seek medical attention.
Drinking Coffee Gives Me Headache, Why?Coffee can both relieve headaches and trigger them. It all depends on how your body responds. Dr. Ashok explains that the most common cause is caffeine withdrawal. Meaning, if you regularly drink coffee and suddenly skip or delay your usual cup, you may develop a headache. This is why headaches often occur on weekends or while travelling, when coffee routines change. Dr. Niranjan adds that if you experience headaches, irritability, fatigue or poor concentration without coffee, your body may have become dependent on regular caffeine. Instead of quitting abruptly, experts recommend reducing your intake gradually and maintaining a consistent coffee routine to minimise withdrawal symptoms.
People Say Black Coffee Is Good For Liver. How True Is That?Yes, moderate black coffee consumption has been consistently linked to better liver health. However, it is not a cure or treatment for liver disease. Dr. Shubha says that studies show drinking 2-4 cups of black coffee a day may lower the risk of fatty liver disease, liver fibrosis, cirrhosis and liver cancer. She attributes these benefits to caffeine and antioxidant-rich polyphenols, which help reduce inflammation, oxidative stress and fat accumulation in the liver. Dr. Pankaj echoes that research supports coffee's protective role but stresses that it should complement, not replace, healthy habits such as regular exercise, maintaining a healthy weight, limiting alcohol and following medical advice.
Why Do I Feel Sleepy Right After Drinking Coffee?Feeling sleepy after drinking coffee may seem unusual, but it is usually a sign of underlying sleep deprivation rather than coffee not working. Dr. Pankaj says poor sleep quality, changes in brain chemicals involved in sleep regulation, or even a blood sugar crash - especially after sugary coffee drinks - can leave you feeling drowsy. Dr. Ashok explains that caffeine temporarily blocks adenosine, the chemical responsible for sleep pressure, but it cannot make up for chronic sleep loss. Over time, regular coffee drinkers may also develop caffeine tolerance. If you frequently feel sleepy despite drinking coffee, it may be worth reviewing your sleep habits or consulting a doctor to rule out an underlying sleep disorder.
I'm A 29-years-old Woman Trying To Conceive And Drink Black Coffee Daily, Can It Impact My Fertility?According to Dr. Ashok, moderate black coffee consumption is not clearly associated with reduced natural fertility. However, higher caffeine intake, which is around 300 mg or more per day, has been linked to an increased risk of pregnancy loss. Since pregnancy can occur before it is confirmed, women trying to conceive should limit caffeine to 200 mg or less daily, which is roughly equivalent to two cups of coffee, depending on how it's prepared. Dr. Muskaan adds that while nutrition and supplements often take centre stage during preconception, caffeine is another daily habit that deserves attention, especially if consumed in excess or around the time of meals and supplements. Women with a history of pregnancy loss or those undergoing fertility treatment should consult their doctor about their caffeine intake.
How Much Coffee Can I Safely Drink During Pregnancy?Pregnant women should limit their caffeine intake to less than 200 mg per day, which is roughly equivalent to two small cups of brewed coffee, says Dr. Shubha. She also points out that caffeine is not found only in coffee - it is present in tea, chocolate and soft drinks, so these sources should be included in your daily total. Consuming more than the recommended amount may increase the risk of pregnancy complications. Dr. Niranjan adds that pregnant women should be especially mindful of their caffeine intake and discuss personalised limits with their healthcare provider, while also prioritising good sleep, hydration and an overall healthy lifestyle.
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