
Lemon · raw
Values per 100 g — CIQUAL data (ANSES). Fibre: 2.8 g.
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Key takeaways
- check_circleRaw lemon provides 29 kcal, 1.1 g protein, 3 g carbs, 0.3 g fat and 2.8 g fiber per 100 g.
- check_circleIt is mainly a seasoning: a few drops of juice lift a dish for almost no calories.
- check_circleIt is not a fat burner: its value is taste, hydration and vitamin C.
- check_circleAdd the juice at the end of cooking and protect your tooth enamel after very lemony drinks.
- check_circleSix app recipes use it: fish, bowls and wraps for both cutting and bulking.
The macros of raw lemon, in numbers
Raw lemon provides about 29 kcal per 100 g, with 1.1 g of protein, 3 g of carbs, 0.3 g of fat and 2.8 g of fiber. It is a very light profile, dominated by water, with some fiber and a modest amount of carbs. These values describe the whole fruit or its flesh, and they only matter when related to what you actually consume: you rarely eat 100 g of lemon in one go.
In practice, a tablespoon of juice, about 15 ml, provides only a few calories, an amount that does not weigh on your daily budget. Half a lemon squeezed over fish or a salad therefore stays nearly neutral in macros. That is what makes lemon an ideal seasoning when you want flavor without adding fat, sugar or salt, especially during a cutting phase.
Vitamin C, acidity and what lemon is not
Lemon is best known as a source of vitamin C, a nutrient that contributes to protecting cells from oxidative stress and to the normal function of the immune system, according to official claims. It also contains organic acids, mainly citric acid, which give it its sharp acidity, along with plant compounds found mostly in the zest. The amount of vitamin C varies with variety, ripeness and storage.
We should stay realistic, though: lemon is not a fat burner, and drinking lemon water does not melt away pounds. Its value lies elsewhere, in the flavor it gives to healthy meals and in the hydration it encourages when plain water bores you. This page is informational and does not replace the advice of a healthcare professional, especially if you have reflux, heartburn or dental concerns.
Lemon when cutting: flavor without the calories
When cutting, the difficulty is not eating less, but staying motivated with simple meals. Lemon rescues grilled chicken, white fish or steamed vegetables in a few seconds. The juice lifts the flavor, the zest brings powerful aromas, and together they let you cut back on dressing, cream or store-bought sauce. Over a week, swapping two spoonfuls of sauce for a squeeze of lemon easily saves several hundred calories.
In the app, several cutting recipes rely on it: steamed cod with lemony broccoli, the shrimp and zucchini skillet, or cod with brown rice and zucchini. These dishes rest on lean proteins and vegetables, and lemon gives them the brightness that fat-free preparations often lack. Remember to add the juice at the end of cooking, since heat dulls its aroma and freshness.
Lemon when bulking: a quiet ally
When bulking, you eat a lot, often rich and dense meals, and the acidity of lemon helps lighten the feeling of heaviness. A salmon and quinoa bowl gains freshness with a few drops of juice, and the fat of the fish is well balanced by the acidity. Lemon provides almost no calories, but it makes large meals more pleasant to finish, which can help you reach your daily total without fatigue.
It pairs just as well with starches as with proteins: a tuna, whole-wheat pasta and corn bowl becomes livelier with a squeeze of lemon, and the tuna and avocado wrap finds its balance thanks to a little zest. When you meal prep, lemon acts as a final seasoning that keeps the next day's dishes from tasting flat. Add it at the last moment to preserve its taste.
Choosing and storing your lemons
Choose lemons that feel heavy for their size, with thin, smooth, slightly shiny skin: these are generally the juiciest. Avoid those with hard, very thick skin or soft, blemished patches. If you plan to use the zest, favor untreated or organic fruit, and wash it carefully in warm water. A firm fruit that yields slightly under pressure is a good sign of ripeness.
At room temperature, a lemon keeps for a few days; in the fridge vegetable drawer, it easily lasts two to four weeks in a bag or closed box. You can also squeeze the juice and freeze it as ice cubes, or grate the zest before freezing the squeezed fruit. To extract more juice, roll the fruit under your palm on the counter before cutting it, or warm it in the microwave for 10 seconds.
Everyday ways to use it
Lemon has many more uses than a simple slice in a glass. Squeeze it over fish at the end of cooking, mix the juice with olive oil for a quick dressing, add zest to plain yogurt or skyr for a fresh note, or grate it over roasted vegetables. Sparkling water with a slice of lemon effectively replaces a sugary drink when you want something other than plain water.
Common mistakes are easy to avoid: squeezing too much lemon over delicate foods that then become too sour, forgetting to rinse your mouth after a very lemony drink to protect the enamel, or counting on it as a miracle supplement. Also remember that store-bought syrups and lemonades have nothing to do with the raw fruit: their macros come mostly from added sugar.
Zest, juice and flesh: what to keep?
The juice concentrates the acidity and some vitamin C, but the flesh holds the fiber. Eating the whole fruit is uncommon, except in thin slices in a stew or a marinade. The zest is the most aromatic part: a few strokes of the grater are enough to perfume an entire dish. Always avoid the white pith, called the albedo, because it is bitter and can spoil a recipe.
For marinades, lemon slightly tenderizes the surface of proteins thanks to its acidity, but too long an exposure makes the texture mealy, especially for fish. Allow 15 to 30 minutes for white fish or shrimp, longer for chicken. For a salad, add the juice at the last moment so the leaves keep their crunch instead of wilting in the acidic liquid.
Portion guidelines and place in your day
Since lemon is used in small amounts, its values are counted in fractions. A medium lemon of about 100 g provides 29 kcal whole, but you only squeeze the juice, roughly 30 to 45 ml, which is around ten calories. For a dish serving two, one whole lemon is more than enough. If you track your macros closely, you can count the juice as a few calories and the zest as almost nothing.
On a typical day, you can use it three times without thinking about it: a little juice in water or tea in the morning, a squeeze over your salad or fish at lunch, and zest in a fromage blanc or skyr dessert in the evening. This regularity changes the taste of healthy meals without complicating your organization. It is a small habit that makes following your diet simpler in the long run, and therefore easier to sustain.
What to pair it with
Lemon naturally pairs with lean proteins and vegetables. Cod, salmon and tuna in water gain freshness from a few drops of juice, broccoli becomes brighter, and olive oil forms with it the base of a simple, quick dressing. These pairings make simple meals tastier without adding unnecessary calories.
Recipes with this food
Frequently asked questions
How many calories are in a lemon?
About 29 kcal per 100 g of raw lemon. The juice of half a lemon provides only a few calories.
Does lemon help you lose weight?
No, no single food burns fat on its own. It mainly helps you season without calories and drink more water.
Does lemon contain protein?
Very little, about 1.1 g per 100 g. It is not a protein source, but it goes well with fish or chicken protein.
Can you eat lemon when cutting?
Yes, it is even an excellent ally for lifting dishes without excess fat, sugar or salt.
Is lemon water useful?
It can help you drink more if you find it pleasant. It has no miracle effect and the acidity can irritate teeth or a sensitive stomach.
How do you keep a lemon longer?
In the fridge, in a bag or closed box, it lasts two to four weeks. You can also freeze the juice or zest.
Can you eat lemon zest?
Yes, in small amounts and finely grated, preferably from an untreated, well-washed fruit. Avoid the bitter white part.
Is bottled lemon juice as good as fresh?
Fresh has a livelier taste. Bottled juice is a fallback, but read the label to check for added sugars or preservatives.
Does lemon damage tooth enamel?
Its acidity can weaken enamel with frequent undiluted consumption. Dilute it, rinse your mouth and wait before brushing your teeth.
Which app recipes use lemon?
Steamed cod with lemony broccoli, the salmon and quinoa bowl, the tuna and avocado wrap, the shrimp and zucchini skillet, among others.
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Nutrition values per 100 g come from the ANSES CIQUAL table (rounded; they vary by brand, variety and cooking). Informational content: it does not replace the advice of a doctor or dietitian.










