Lemon is rich in vitamin C, citric acid and polyphenols. Its main functions include promoting digestion, anti-oxidation, helping to improve immunity, improving skin condition, etc. Its natural acidic components can stimulate gastric juice secretion, but it needs to be consumed in moderation to avoid irritating the stomach and intestines. In addition, lemonade is often used for daily hydration, but the efficacy is affected by the amount and method of consumption.

1. The core functions and effects of lemon

1. Supplementing vitamin C

Lemon is a high-quality source of vitamin C. Every 100 grams of lemon contains about 50 mg of vitamin C, which can help prevent scurvy and promote collagen synthesis, but the daily intake is limited (adults are recommended to take 100 mg/day) and need to be supplemented with other foods.

2. Promote digestion and metabolism

Citric acid can stimulate gastric acid secretion, help break down protein, and relieve fullness after meals; at the same time, it can promote mineral absorption (such as iron and calcium). However, patients with excessive gastric acid or gastritis should be cautious when eating and avoid drinking lemonade on an empty stomach.

3. Antioxidant and anti-inflammatory

Polyphenols in lemons (such as hesperidin and naringenin) and vitamin C work synergistically to remove free radicals, slow down cell oxidative damage, and may reduce the risk of chronic inflammation. However, its effect requires long-term regular intake and cannot replace drugs.

4. Assist skin health

Vitamin C inhibits melanin production. Lemon juice may lighten spots, but it is too acidic and can easily irritate the skin, so it needs to be diluted before use. Oral administration can indirectly improve skin condition through anti-oxidation, but the whitening effect varies from person to person.

5. Enhance immunity

Vitamin C can promote white blood cell activity. Short-term large-scale supplementation may relieve cold symptoms (such as sore throat), but it cannot prevent or treat diseases.