Lemon is the most acidic common fruit, with a pH around 2, and its juice delivers roughly 53 mg of vitamin C per 100 g alongside citric acid, hesperidin and eriocitrin — a flavonoid almost unique to lemons. That combination is why lemons appear in research on immune support and digestive health.
Why lemons are good for you
Lemons’ vitamin C content is high, and the citric acid content increases urinary citrate excretion, which helps prevent kidney stones in susceptible people. The flavonoids — especially in the peel and pith — have antioxidant and anti-inflammatory effects, and eriocitrin is being studied for its anti-diabetic potential. The main nutritional caveat is acidity: lemon juice erodes tooth enamel, so dilute it and drink through a straw.
Lemon nutrition at a glance
The label shows the numbers, but the practical message is that lemon is a zero-calorie flavour enhancer with a genuine vitamin-C edge. A squeeze of lemon on vegetables, fish or water replaces salt and adds nutrients.
How to buy and use lemons
Choose heavy, firm lemons with smooth, bright yellow skin. The heaviest ones have the most juice. Store in the fridge for longest freshness. Use lemon juice in salad dressings with olive oil, on fish and chicken before roasting, in water with mint, or in homemade mayonnaise. Lemon zest contains most of the essential oils and flavonoids — grate it into dressings, baked goods and tea. Lemon pairs with almost everything savoury and sweet.
Common questions
Does lemon water help with weight loss? It may help if it replaces sugary drinks, but lemon water itself does not magically burn fat. The main benefit is hydration with flavour.
Is lemon bad for teeth? Yes — the acid erodes enamel. Dilute lemon juice, drink through a straw, and avoid brushing immediately after drinking lemon water.
Explore by health goal
Lemon is one of many foods that support these goals:
