It is said black coffee is good for liver. Dr Neerav Goyal, senior consultant, liver transplant, Indraprastha Apollo Hospitals, New Delhi, tells us how true this is. “The notion that black coffee is beneficial for liver health has garnered attention in recent years, and there is some scientific evidence to suggest that moderate consumption of black coffee may indeed have potential benefits for the liver. However, it is important to understand the context and limitations of these findings,” he says. “Black coffee is primarily known for its high content of caffeine, antioxidants and other bioactive compounds. Several studies have shown that these components can exert protective effects on the liver,” he adds.
Liver disease prevention: Some research indicates that moderate coffee consumption may lower the risk of liver diseases, including non-alcoholic fatty liver disease, alcoholic liver disease, and liver fibrosis. The antioxidants in coffee are thought to play a role in reducing liver inflammation and oxidative stress, which are key factors in liver damage.
Reduced risk of liver cancer: Several studies have suggested that regular coffee consumption may be associated with a reduced risk of liver cancer, particularly hepatocellular carcinoma. Caffeine and antioxidants may help inhibit the development of cancerous cells in the liver.
Improved liver enzymes: Some individuals with liver conditions, such as elevated liver enzymes, have experienced improvements in their enzyme levels after consuming coffee. Lower levels of certain liver enzymes are generally considered a positive indicator of liver health.
However, it is crucial to note that while these findings are promising, moderation is key. Excessive caffeine intake can have adverse effects on health, including increasing the risk of heart palpitations, anxiety and sleep disturbances. Furthermore, individual responses to coffee can vary, and some people may be more sensitive to its effects.
Additionally, not all liver conditions benefit equally from coffee consumption. For instance, individuals with advanced liver diseases, like cirrhosis, should consult their healthcare providers before increasing their coffee intake, as caffeine can exacerbate certain complications in such cases.
Liver aside, does coffee have any side effects, like increasing BP?
While moderate consumption of coffee offers several potential health benefits, it’s essential to consider its effects on blood pressure (BP) and other aspects of health from a medical standpoint.
Blood pressure: Coffee contains caffeine, a natural stimulant that can temporarily raise blood pressure. When you consume coffee, caffeine prompts the release of stress hormones like adrenaline, causing your heart rate and blood pressure to increase. However, this effect is generally short-lived.
Cardiovascular health: Some studies suggest that habitual coffee consumption may have a mild protective effect on heart health. It is believed that coffee’s antioxidant compounds, such as chlorogenic acids, may contribute to this benefit by reducing inflammation and improving blood vessel function.
Sleep disturbances: Consuming coffee, especially in the afternoon or evening, can interfere with sleep. Poor sleep quality and insufficient sleep are associated with various health problems, including hypertension.