Answer:
Lemon juice, extracted from fresh lemons (usually yellow or green), is rich in citric acid, vitamin C, antioxidants, and small amounts of minerals like potassium, calcium, and magnesium.
Drinking lemon juice, especially when mixed with warm water, offers several health benefits when consumed correctly and in moderation, including boosting the immune system. The high vitamin C content in lemons helps improve resistance and prevent colds and sore throats. It also stimulates digestive juices, increases intestinal motility, and helps relieve bloating, flatulence, and constipation.
The citric acid in lemon supports liver function, and drinking it in the morning can gently "activate" the detoxification process.
Additionally, lemon can aid in weight loss by reducing appetite, increasing satiety, and slightly boosting metabolism thanks to its natural enzymes. Its antioxidants help neutralize free radicals, slowing down the aging process. Vitamin C also supports collagen production, contributing to radiant skin.
Despite its sour taste (acidity), lemon has an alkalizing effect on the body, helping to neutralize excess acid.
However, lemon juice can be harmful if consumed incorrectly. Its high acidity can erode tooth enamel, causing sensitivity if drunk regularly without rinsing with plain water afterward. Consuming too much or drinking it on an empty stomach can cause stomach pain, heartburn, and acid reflux in those with a history of stomach problems. Furthermore, drinking highly concentrated lemon juice without diluting it can hinder absorption and disrupt electrolyte balance. The acid in lemon can also decrease or increase the absorption of certain medications (such as antibiotics, antidepressants, and blood pressure medication).
Therefore, if you want to drink lemon juice for health benefits, limit yourself to the juice of ½ - 1 lemon per day, diluted with 250-500 ml of water. The best time to drink it is in the morning, after a light meal or 30 minutes before a meal. Avoid drinking it on an empty stomach, if you have stomach ulcers, acid reflux, or weak tooth enamel.
Doctor Tran Duc Canh
Deputy Head of the Department of Endoscopy and Functional Exploration, K Central Hospital
