QUICK ANSWER
How many calories are in raw lemon juice?
The selected raw lemon-juice record provides 22 kcal per 100 g. Scale from the edible amount and keep other states separate.
22 kcal / 100 gNutrition values describe a reference food state, not every individual item. Variety, water content, preparation and portion weight can change the estimate.
THE NUMBERS
Raw lemon juice nutrition facts per 100 g
The values below use the reference state shown at the top of this page. Keeping one gram basis makes it easier to compare foods before translating the values to the portion you actually ate.
- Calories
- 22 kcal
- Protein
- 0.35 g
- Carbohydrate
- 6.9 g
- Fat
- 0.24 g
- Fibre
- 0.3 g
- Vitamin C
- 38.7 mg
- Folate
- 20 µg
- Potassium
- 103 mg
Source: USDA FoodData Central SR Legacy record 167747. Values may be rounded for readability.
SERVING SIZE
Calories by portion and serving weight
Words such as “small,” “medium,” “half” and “one piece” are convenient but imprecise. Grams make the estimate reproducible, particularly when natural foods vary in size.
MACROS
Carbohydrate, protein and fat explained
Protein
0.35 g per 100 g. From Lemon juice, raw.
Carbohydrate
6.9 g per 100 g. From Lemon juice, raw.
Fat
0.24 g per 100 g. From Lemon juice, raw.
MORE THAN CALORIES
Fibre, vitamins and minerals
One food does not need to provide every nutrient. These are the characteristics most useful for understanding where raw lemon juice fits in a varied eating pattern.
Vitamin C
38.7 mg per 100 g in the selected USDA record.
Folate
20 µg per 100 g in the selected USDA record.
Potassium
103 mg per 100 g in the selected USDA record.
Magnesium
6 mg per 100 g in the selected USDA record.
FOOD STATE MATTERS
How preparation changes the nutrition estimate
A reliable calorie entry should describe the food you actually ate—not merely a food with a similar name.
Raw juice
Selected reference.
Bottled concentrate
Use the exact product label.
Lemonade
Log water and sweetener with the juice.
Dressing or sauce
Use the complete recipe.
PRACTICAL CONTEXT
How raw lemon juice can fit different goals
There is no universal “good” or “bad” food. Portion, frequency, the rest of the meal, preferences and individual health needs all matter.
Portion math
At 22 kcal per 100 g, the 5.9 g example is 1.3 kcal.
Fibre check
The selected record lists 0.3 g fibre per 100 g.
Protein check
The selected record lists 0.35 g protein per 100 g.
Best logging move
Measure plain raw juice and keep concentrate, sugar and recipes separate.
QUALITY & SAFETY
How to choose, store and prepare it
Store
Keep whole lemons according to seller guidance.
After opening or cutting
Keep expressed juice covered and chilled.
Prepare
Use clean fruit, tools and containers when juicing.
Safety boundary
This nutrient record does not establish juice-storage duration; use current authoritative guidance.
PHOTO LOGGING
How to log raw lemon juice more accurately
A food photo can suggest the ingredient, but it cannot always reveal exact weight, hidden oil or preparation details. These checks turn an image guess into a better estimate.
- 01
Match the exact reference state: Lemon juice, raw.
- 02
Use edible grams. Calories are scaled from the selected per-100-g record; named portion weights come from the same local USDA record, while explicitly labelled gram examples are calculated.
- 03
Log oil, sauce, sweetener, salt and recipe ingredients separately.
- 04
Use a separate record when preparation changes the food state.
COMMON QUESTIONS
Raw lemon juice calorie and nutrition questions
How many calories are in 100 g of lemon juice?
22 kcal in the selected Lemon juice, raw record.
How much fibre is in lemon juice?
0.3 g per 100 g in the selected record.
Which lemon juice state does this page use?
Lemon juice, raw. State and preparation are part of the answer.
Is lemonade included?
No. Lemonade includes water and usually sweetener and needs recipe calculation.
How are the portion calories calculated?
Each portion is scaled from 22 kcal per 100 g. Named weights come from the selected source record; calculated gram examples are labelled.
KEEP EXPLORING
Related food guides
SOURCES & METHOD
Where these numbers come from
Lemon juice, raw, per 100 g edible portion. Numeric nutrition claims use the nutrition-reviewed local USDA record. Named portion claims use source-held weights; explicitly labelled gram examples are calculations from the per-100-g record. The nutrient record does not establish storage duration, clinical advice or food-safety limits; use package directions and current authoritative guidance where relevant.
Open USDA FoodData Central SR Legacy record 167747 ↗Page reviewed 26 August 2026. We show the food state, gram basis and source record so readers can check the estimate instead of treating one number as universally exact.