A cardiologist has warned that regularly consuming instant noodles late at night may have serious health consequences, particularly for heart health, blood pressure, sleep quality, and metabolic function. The caution comes amid growing concerns about unhealthy midnight eating habits, especially among young adults and working professionals who often rely on quick, processed meals to satisfy late-night hunger.

According to Dr Ayan Kar, consultant interventional cardiologist at Narayana RN Tagore Hospital, Narayana Health, Kolkata, a single serving of instant noodles can contain between 800 to 1,200 mg of sodium, much of it coming from seasoning packets. With the World Health Organization recommending less than 2,000 mg of sodium per day for adults, one bowl can nearly reach or exceed the daily limit in one sitting, significantly increasing health risks.

Dr Kar explained that high sodium intake causes the body to retain water, increasing blood volume and putting additional pressure on blood vessels. Over time, this can strain the heart and contribute to elevated blood pressure. Individuals with existing hypertension or a family history of cardiovascular disease may face an even higher risk if such eating habits become frequent.

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The doctor also highlighted why eating such meals at night can be more harmful than during the day. He noted that the body’s natural “nocturnal dipping” in blood pressure is disrupted by late-night high-sodium intake, preventing the cardiovascular system from resting and recovering properly. In addition, kidney function slows down at night, reducing the body’s ability to efficiently remove excess sodium, which prolongs its impact on blood pressure levels.

Another concern is reduced insulin sensitivity during nighttime hours, which can lead to sharper spikes in blood sugar when consuming high-carbohydrate foods like instant noodles. Dr Kar further warned that late-night heavy meals may interfere with sleep by affecting hormonal balance, particularly melatonin, which regulates sleep cycles and also influences insulin activity. This combination can result in poor-quality sleep and metabolic imbalance over time.

To reduce health risks, the cardiologist recommended healthier alternatives for midnight cravings, including plain dal, roasted makhana, banana with unsalted nuts, warm milk with turmeric or chamomile tea, and whole wheat bread with peanut butter. While occasional consumption of instant noodles is not considered harmful, experts caution that making them a regular late-night habit could significantly increase long-term cardiovascular and metabolic risks.

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