Nutritionist: 'Regret water' after overeating only reduces water, not fat

A popular social media trend promoting a "regret water" concoction after overeating is misleading, according to a nutritionist. The drink, typically made with coconut water, matcha powder, and unsweetened soy milk, is claimed to detoxify, reduce bloating, and aid weight loss.

However, nutritionist Lin Cen warns that any temporary weight loss is due to water loss, not fat reduction. She cautions that excessive consumption could lead to increased intake of sugar, calories, and potassium. Coconut water is rich in potassium, matcha contains caffeine that promotes urination, and soy milk adds to satiety.

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The weight loss after drinking is mostly water loss, not fat reduction.

Lin Cen explains that post-meal weight gain often includes undigested food and water retention from high-sodium diets. While high-potassium drinks can increase urination and cause a temporary drop in weight, this effect is not fat loss. She advises against replacing plain water with "regret water" or consuming it in large quantities after meals.

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Drinking too much can increase sugar, calorie, and potassium intake, potentially leading to weight gain.

Potential risks include increased calorie intake from the natural sugars and calories in coconut water and soy milk, which can hinder weight control. For sensitive individuals, the caffeine in matcha can cause stomach discomfort, heart palpitations, or diarrhea, especially on an empty stomach. Furthermore, individuals with chronic kidney disease, a history of high blood potassium, poor kidney function, diabetes, heart failure, or those taking specific medications should avoid high-potassium beverages due to the risk of hyperkalemia.

Instead of relying on quick fixes, Lin Cen recommends establishing balanced eating habits and regular exercise. She suggests eating normally before gatherings, consuming meals in the order of water, protein, vegetables, grains, and fruit to reduce refined carbohydrates and sugar, and taking a 10-30 minute walk after meals to help stabilize blood sugar levels. Building sustainable healthy habits is the key to long-term weight management and overall health.

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Instead of relying on internet remedies, it is better to establish balanced eating habits and regular lifestyle habits for long-term weight control and health maintenance.