Calories in Mature Onions
Complete nutrition facts, macros, vitamins, and minerals — per 100g and per serving. Data sourced from USDA FoodData Central Foundation Foods database.
Calories by Serving Size
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
How does Mature Onions fit your daily goals?
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Frequently Asked Questions
How many calories are in Mature Onions?
Mature Onions contains 42 calories per 100g. It is considered a very low-calorie food (under 50 kcal/100g), making it excellent for weight management.
How much protein does Mature Onions have?
Mature Onions provides 0.92g of protein per 100g, which is 2% of the 50g daily recommended value. It is not a primary protein source.
How many carbs are in Mature Onions?
Mature Onions contains 10.11g of carbohydrates per 100g .
Is Mature Onions good for weight loss?
Yes! Mature Onions is very low in calories (42 kcal/100g) and can be eaten in generous portions even on a calorie-restricted diet.
How do I track Mature Onions calories accurately?
The easiest way to track mature onions is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.