How much protein is in Onions?

Onions (Without Salt, Frozen, Drained, Cooked, Boiled) contains 0.71g of protein per 100g. This is 1% of the recommended daily value of 50g.

Is Onions good for weight loss?

Onions (Without Salt, Frozen, Drained, Cooked, Boiled) has 28 calories per 100g. With fewer than 50 kcal per 100g, it is a very low-calorie food and can be included freely in most weight-loss diets.

🥦 onion

Calories in Onions (Without Salt, Frozen, Drained, Cooked, Boiled)

Complete nutrition facts, macros, vitamins, and minerals — per 100g and per serving. Data sourced from USDA FoodData Central Foundation Foods database.

28 kcal

per 100g

Protein 0.71g

Carbs 6.7g

Fat 0.05g

Calories by Serving Size

100g

28 kcal

P 0.71g C 6.7g F 0.05g

200g

56 kcal

P 1.4g C 13.4g F 0.1g

50g

14 kcal

P 0.4g C 3.4g F 0g

Full Nutrition Facts

Per 100g — daily values based on a 2,000 calorie diet

Nutrition Facts

Serving size: 100g

Calories 28

% Daily Value*

Total Fat 0.05g 0%

Trans Fat g

Total Carbohydrate 6.7g 2%

Protein 0.71g 1%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

How does Onions fit your daily goals?

🏃

6 min

Walking to burn 28 kcal

🎯

of 2,000 kcal daily goal

💪

0.71g

protein (1% of daily 50g)

⚡

servings until 2,000 kcal

🍎

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Frequently Asked Questions

How many calories are in Onions (Without Salt, Frozen, Drained, Cooked, Boiled)?

Onions (Without Salt, Frozen, Drained, Cooked, Boiled) contains 28 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 Onions (Without Salt, Frozen, Drained, Cooked, Boiled) have?

Onions (Without Salt, Frozen, Drained, Cooked, Boiled) provides 0.71g of protein per 100g, which is 1% of the 50g daily recommended value. It is not a primary protein source.

How many carbs are in Onions (Without Salt, Frozen, Drained, Cooked, Boiled)?

Onions (Without Salt, Frozen, Drained, Cooked, Boiled) contains 6.7g of carbohydrates per 100g .

Is Onions (Without Salt, Frozen, Drained, Cooked, Boiled) good for weight loss?

Yes! Onions (Without Salt, Frozen, Drained, Cooked, Boiled) is very low in calories (28 kcal/100g) and can be eaten in generous portions even on a calorie-restricted diet.

How do I track Onions (Without Salt, Frozen, Drained, Cooked, Boiled) calories accurately?

The easiest way to track 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.