How much protein is in Red Onions?

Red Onions contains 0.92g of protein per 100g. This is 2% of the recommended daily value of 50g.

🥦 onion

Calories in Red Onions

Q: How many calories are in Red Onions?

Red Onions contains 42 calories per 100g. A typical serving of 100g (100g) provides 42 calories.

Q: How many carbs are in Red Onions?

Red Onions contains 10.11g of carbohydrates per 100g.

Q: Is Red Onions good for weight loss?

Red Onions has 42 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.

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

42 kcal

per 100g

Protein 0.92g

Carbs 10.11g

Fat 0.08g

Calories by Serving Size

100g

42 kcal

P 0.92g C 10.11g F 0.08g

200g

84 kcal

P 1.8g C 20.2g F 0.2g

50g

21 kcal

P 0.5g C 5.1g F 0g

Full Nutrition Facts

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

Nutrition Facts

Serving size: 100g

Calories 42

% Daily Value*

Total Fat 0.08g 0%

Trans Fat g

Total Carbohydrate 10.11g 4%

Protein 0.92g 2%

* 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 Red Onions fit your daily goals?

🏃

8 min

Walking to burn 42 kcal

🎯

of 2,000 kcal daily goal

💪

0.92g

protein (2% of daily 50g)

⚡

servings until 2,000 kcal

🍎

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Frequently Asked Questions

How many calories are in Red Onions?

Red 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 Red Onions have?

Red 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 Red Onions?

Red Onions contains 10.11g of carbohydrates per 100g .

Is Red Onions good for weight loss?

Yes! Red 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 Red Onions calories accurately?

The easiest way to track red 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.