Don't rely on coffee as a weight-loss miracle, warns nutritionist

Many people consider black coffee a weight-loss miracle, believing it can help burn fat. However, nutritionist Liao Xinyi warns that while coffee's components like caffeine and chlorogenic acid can indeed boost metabolism and assist in fat utilization, it is not the primary driver of weight loss. She emphasizes that excessive intake or individual intolerance can lead to adverse effects such as palpitations, anxiety, stomach irritation, and insomnia, which can counteract any potential benefits and hinder weight management.

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Coffee can be an auxiliary tool for fat reduction, but it is not a miracle cure. If you drink too much or it affects your sleep, it will be counterproductive for weight control.

Liao explains that the potential benefits of coffee for weight control stem from several factors. Caffeine can stimulate the nervous system, temporarily increasing calorie expenditure. Pre-workout caffeine intake might enhance fat oxidation during exercise, and some individuals experience a temporary appetite suppression. Additionally, improved energy levels can boost exercise performance. Chlorogenic acid is also being studied for its potential role in regulating blood sugar and reducing fat accumulation, though more research is needed.

However, Liao cautions against relying solely on coffee for weight loss. The effective dosage in studies often requires amounts that can trigger side effects in many individuals. Personal tolerance varies greatly; some may experience jitters from half a cup, while others feel nothing from a full cup. Crucially, side effects like anxiety, insomnia, and digestive discomfort can lead to poor sleep, which in turn increases cravings for high-calorie foods, ultimately undermining weight loss efforts.

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The common side effects, such as palpitations, anxiety, stomach irritation, and insomnia, can lead to insufficient sleep, making one crave high-calorie foods, which is detrimental to health.

Therefore, Liao advises treating coffee as a supplementary tool, not a primary solution. If you already drink coffee, consider consuming unsweetened black coffee 30-60 minutes before exercise to enhance performance. Avoid high-sugar, high-fat coffee drinks like caramel lattes, which can add significant calories. Be mindful of your daily intake, generally keeping caffeine below 400mg for adults, and reduce consumption in the afternoon to protect sleep quality. Ultimately, achieving a calorie deficit, adequate protein, regular exercise, quality sleep, and sustainable habits are the core principles for healthy weight loss.

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Eating a serving of fried food with a sweet drink cannot be offset by a cup of coffee. The core of effective fat reduction is still calorie deficit, sufficient protein, regular exercise, sleep quality, and long-term habits.