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Low-calorie, high-sodium savory condiment
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
2 tablespoon (diced) of Soy sauce onions (30 g) has 13 calories. That works out to 42 calories per 100 g. It contains 2.4 g of carbs, 0.6 g of protein, 0 g of fat and 0.4 g of fiber. Its glycemic index is 15 (low), so it raises blood sugar slowly.
Selected: 2 tablespoon (diced) · 30 g
13
KCAL / 30G
Carbs
2.4g
· 1% DV
Protein
0.6g
· 1% DV
Fat
0g
· 0% DV
Fiber
0.4g
· 1% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 80% · Protein 20% · Fat 0%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 13 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0.01 g | 0% |
| Trans fat | 0 g | |
| Sodium | 270 mg | 12% |
| Total carbohydrate | 2.4 g | 1% |
| Fiber | 0.4 g | 1% |
| Protein | 0.6 g | 1% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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| Serving | Amount | Calories |
|---|---|---|
| 2 tablespoon (diced) | 30 g | 13 kcal |
| 1 teaspoon (diced) | 5 g | 2 kcal |
| 1 tablespoon (diced) | 15 g | 6 kcal |
| 0.25 cup (diced) | 40 g | 17 kcal |
| 1 serving (small) | 60 g | 25 kcal |
| ½ cup (diced) | 80 g | 34 kcal |
| 100 g | 100 g | 42 kcal |
| 1 serving (medium) | 120 g | 50 kcal |
| 1 serving (large) | 180 g | 76 kcal |
Calculated from 42 calories per 100 g.
Soy sauce onions are made by cooking sliced onions until soft, then adding soy sauce near the end. Stir briefly so the sauce coats the onions without scorching; a little oil helps them soften evenly in the pan.
Soy sauce onions go well with rice, noodles, stir-fried vegetables, and cooked meat or tofu. Their savory flavor also works as a topping for burgers or sandwiches, where a small amount can add a salty, umami-rich bite.
No, soy sauce onions are not necessarily caramelized onions. They may soften and brown in the pan, but soy sauce adds a salty, savory flavor; classic caramelized onions are cooked slowly until their natural sugars produce a distinctly sweet taste.
Yellow onions are a dependable choice for soy sauce onions because they soften well and have a balanced flavor. White onions work too, while red onions make a sweeter, more colorful topping; green onions need much less cooking.
Add the soy sauce after the onions have started to soften. This gives the onions time to cook without the sauce reducing too quickly or sticking to the hot pan; stir for a short time once the sauce is added.
Soy sauce onions can taste too salty because soy sauce is high in sodium. Avoid adding extra salt, use less soy sauce, or cook more onions into the mixture to spread the seasoning across a larger amount.
Soy sauce onions keep for about 3–4 days in a covered container in the refrigerator. Refrigerate them after cooking rather than leaving them out, and reheat only the portion you plan to eat.
Yes, you can freeze cooked soy sauce onions. Cool them first, portion them into airtight containers, and thaw them in the refrigerator before reheating. The onions may be softer after thawing, so they work especially well mixed into rice or noodles.
Yes, soy sauce onions make a savory burger topping. Cook the onions until tender and let excess liquid evaporate before adding them to the burger, so the bun does not become soggy.
Yes, soy sauce onions can be high in sodium because soy sauce is salty. If you need to limit sodium, use a smaller amount or choose reduced-sodium soy sauce; the finished onions will still add plenty of savory flavor.
Vitamins
B6
0.04mg · 2% DV
Vitamin C
1.86mg · 2% DV
Folate
5.4µg · 1% DV
B1
0.01mg · 1% DV
Minerals
Sodium
270mg · 12% DV
Copper
0.02mg · 2% DV
Manganese
0.05mg · 2% DV
Phosphorus
14mg · 2% DV
Potassium ⭐
51mg · 2% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 13 calories in 2 tablespoon (diced) (30 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Soy sauce onions are chopped or sliced onions combined with soy sauce, either briefly cooked until tender or served as a quick savoury topping. The pairing is not tied to one specific national dish; it draws on the widespread use of soy sauce in East and Southeast Asian cooking and works easily in home kitchens elsewhere.
Cooking softens the onion and brings out its sweetness, while the sauce adds a salty, savoury depth. Serve the onions over rice or noodles, alongside vegetables or tofu, or use them to add flavour to a sandwich or grain bowl. They are low in calories, but soy sauce makes them sodium-rich, so use a lighter hand if you are watching your salt intake.
Medium
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Medium
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.
NOVA 3
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.
Contains these allergens:
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
0.01g
MONOUNSATURATED
0g
POLYUNSATURATED
0.01g
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Nutrition data compiled from USDA FoodData Central and scientific sources.