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How Many Calories in Onions, Dehydrated Flakes?

Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by our editorial team. Last reviewed: 5 September 2026.

Fact-checked against original USDA source data by our editorial team.

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349
calories per 100g
17 calories per 1 tbsp (5g)
8.9gProtein
83.3gCarbs
0.5gFat
9.2gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)99 kcal2.5g
100g349 kcal8.9g
1 tbsp17 kcal0.4g
grams
349kcal
8.9gprotein
83.3gcarbs
0.5gfat
9.2gfibre

A onions, dehydrated flakes contains 349 calories per 100g. A typical 1 tbsp (5g) provides about 17 calories. Onions, Dehydrated Flakes is high in calories. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Onions, Dehydrated Flakes Nutrition Facts

NutrientPer 100gPer serving (5g)
Calories349 kcal17 kcal
Protein8.9g0.4g
Carbohydrates83.3g4.2g
of which Sugars37.4g1.9g
Fat0.5g0.0g
of which Saturates0.1g0.0g
Fibre9.2g0.5g
Sodium21.0mg1mg
Potassium1622.0mg81mg
Calcium257.0mg13mg
Iron1.6mg0.1mg
Vitamin C75.0mg3.8mg
Vitamin A1.0µg0µg
Selenium5.0µg0µg
Riboflavin (B2)0.1mg0.0mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

Useful for tracking onions, dehydrated flakes

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Have a cat or dog? Check whether onions, dehydrated flakes is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. Use a meal prep container set to portion out onions, dehydrated flakes for the week. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Cooking method matters here too — boiling can leach some water-soluble vitamins into the cooking water, while steaming or roasting tends to retain more.

Does onions, dehydrated flakes fit your diet?

Fibre intake

Onions, Dehydrated Flakes provides 9.2g of fibre per 100g — a meaningful contribution toward the commonly cited 25-30g daily target, which supports digestion and helps with feeling fuller for longer.

Frequently Asked Questions

How many calories in onions, dehydrated flakes per 100g?

Onions, Dehydrated Flakes contains 349 calories per 100g, based on USDA reference data.

Is onions, dehydrated flakes high in calories?

A 1 tbsp of onions, dehydrated flakes (5g) has around 17 calories — roughly 1% of a 2,000-calorie daily intake.

Is onions, dehydrated flakes good for weight loss?

Onions, Dehydrated Flakes is fairly calorie-dense at 349 calories per 100g, so portion size matters when losing weight. A 1 tbsp provides about 17 calories.

How much protein is in onions, dehydrated flakes?

Onions, Dehydrated Flakes contains 8.9g of protein per 100g.

Is onions, dehydrated flakes a good source of fibre?

Yes — onions, dehydrated flakes provides 9.2g of fibre per 100g, which is a meaningful contribution toward the commonly cited 28g daily reference intake.

How does onions, dehydrated flakes compare to shallots, freeze-dried?

Onions, Dehydrated Flakes has 349 calories per 100g, close to shallots, freeze-dried at 348 — 1 calories more per 100g. See the full macro breakdown above.

How many servings of onions, dehydrated flakes for 20g of protein?

With 8.9g of protein per 100g, you'd need roughly 225g of onions, dehydrated flakes to reach 20g of protein

Foods with a similar calorie count

Other vegetables closest to onions, dehydrated flakes by calories per 100g:

FoodCaloriesProteinCarbsFat
Onions, Dehydrated Flakes (this page)349 kcal8.9g83.3g0.5g
Shallots, Freeze-dried348 kcal12.3g80.7g0.5g
Beans, Pinto, Mature Seeds, Raw347 kcal21.4g62.5g1.2g
Mung Beans, Mature Seeds, Raw347 kcal23.9g62.6g1.1g
Noodles, Chinese, Cellophane or Long Rice (mung Beans), Dehydrated351 kcal0.2g86.1g0.1g
Yardlong Beans, Mature Seeds, Raw347 kcal24.3g61.9g1.3g
Lentils, Raw352 kcal24.6g63.4g1.1g

More kit for onions, dehydrated flakes tracking

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Last updated:

Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.