1 cup (medium) of Onion juice (240 g) has 55 calories. That works out to 23 calories per 100 g. It contains 12.5 g of carbs, 1.7 g of protein, 0.2 g of fat and 0.5 g of fiber. Its 17.8 mg of Vitamin C covers 20% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.

Onion juice Nutrition Facts

Selected: 100 g

KCAL / 100G

Carbs

5.2g

· 2% DV

Protein

0.7g

· 1% DV

Fat

0.1g

· 0% DV

Fiber

0.2g

· 1% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 85% · Protein 11% · Fat 4%

Onion juice Vitamins & Minerals

Vitamins

Vitamin C

7.4mg · 8% DV

0.12mg · 7% DV

Folate

19µg · 5% DV

0.03mg · 3% DV

Minerals

Phosphorus

29mg · 4% DV

Potassium ⭐

146mg · 4% DV

Calcium

23mg · 2% DV

Magnesium

10mg · 2% DV

How Nutritious Is Onion juice?

Nutrient density

Medium

55/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

40/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Onion juice Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Onion juice

To burn the 23 calories in 100 g:

🚶

6min

Walking (5 km/h)

🏃

2min

Running (8 km/h)

🚴

3min

Cycling

🏊

3min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Onion juice Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Onion juice Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Onion juice Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Onion juice Fat Profile

SATURATED

0.02g

MONOUNSATURATED

0.01g

POLYUNSATURATED

0.03g

⚖️

Omega 6:3 ratio 2:1

Below the ideal 4:1 — a good omega balance.

Compare Onion juice

🧅vs🍅

Onion juice vs Tomato5 kcal more per 100 g

→🧅vs🥗

Onion juice vs Mixed Green Salad5 kcal more per 100 g

→🧅vs🫑

Onion juice vs Red Pepper8 kcal fewer per 100 g

→🧅vs🥄

Onion juice vs Boiled Beetroot21 kcal fewer per 100 g

→

Foods Similar to Onion juice

🍅

Tomato

18 kcal

🥗

Mixed Green Salad

18 kcal

🫑

Red Pepper

31 kcal

🥄

Boiled Beetroot

44 kcal

🫑

Green pepper

20 kcal

🥗

Potato Salad

110 kcal

🥗

Arugula

25 kcal

🥕🥦🍆

Oven-Roasted Mixed Vegetables

65 kcal

Frequently Asked Questions About Onion juice

How many calories are in onion juice?

Onion juice contains 23 calories per 100 g. The same serving provides 5.2 g of carbohydrates, 0.7 g of protein, and 0.1 g of fat.

Is onion juice low glycemic?

Onion juice has a glycemic index of 15, which is considered low. It contains 5.2 g of carbohydrates per 100 g.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 23, 2026