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A glass of warm lemon water every morning: What do doctors say?

Many health-conscious people have the habit of drinking a glass of warm lemon water every morning as soon as they wake up to 'cleanse the body'.

Báo Thanh niênBáo Thanh niên21/08/2025

Does this habit really cleanse the body, and are there any side effects? To answer these questions, a gastroenterologist trained at the prestigious Stanford University in the US will reveal the truth behind your daily glass of warm lemon water.

Dr. Saurabh Sethi shares: Warm lemon water has more health benefits than we think, according to Hindustan Times.

Sáng nào cũng 1 ly nước chanh ấm: Bác sĩ nói gì? - Ảnh 1.

Warm lemon water has more health benefits than we think.

Photo: AI

Warm lemon water helps to feel comfortable in the morning

When taken in the morning on an empty stomach, warm lemon water helps to activate the digestive system and rehydrate the body. However, be careful not to mix lemon into water that is too hot, as vitamin C will begin to decompose at temperatures above 70°C. It is best to let the water cool down before adding lemon juice to retain nutrients.

Increase body hydration

About 75 percent of adults are chronically dehydrated, according to Dr. Sethi. Many people don’t like plain water because it tastes bland, which leads them to drink less than the recommended daily amount. Lemon water with a little honey makes it easier to drink, and it also aids digestion, increases energy, and helps with concentration.

Natural source of vitamin C

Lemons are a natural source of vitamin C, with about 35 mg of vitamin C per fruit – 40% of your daily requirement. Vitamin C helps boost immunity, supports collagen production, maintains healthy skin and improves iron absorption.

Digestive support

Some people find it easier to digest when they drink lemon water before meals. The citric acid in lemons is mild, which can stimulate gastric juice secretion and increase bile flow, thereby helping the body break down food more effectively.

Be careful with gastric reflux

Citric acid can increase stomach acid in some people, causing heartburn. About 20% of people with GERD feel their symptoms worsen after drinking lemon water. Dr. Sethi advises against drinking it if you feel full or have a burning sensation.

Enamel erosion

With a pH of 2-3, lemon juice is highly acidic and can erode tooth enamel if consumed for a long time. Use a straw and only drink one glass and then rinse your mouth with water, instead of sipping it all day.

Does lemon water detoxify the body?

Dr Sethi insists that lemon water does not have the cleansing properties that many people believe. However, by helping to hydrate and aid digestion, it indirectly helps the natural detoxification process of the liver and kidneys, according to Hindustan Times.

Good habits for the digestive system

If it works for your body, drinking warm lemon water every morning can be a good habit for your gut health. Not only does it aid digestion and hydration, but it can also benefit your gut microbiome — as long as you watch for signs of reflux and practice proper oral care.

Source: https://thanhnien.vn/sang-nao-cung-1-ly-nuoc-chanh-am-bac-si-noi-gi-185250822061813549.htm


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