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Low-calorie marinated mushrooms with onion; sodium can be high
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 serving (medium) of Mushrooms marinated with onion (120 g) has 50 calories. That works out to 42 calories per 100 g. It contains 7.3 g of carbs, 2.2 g of protein, 1.7 g of fat and 2.4 g of fiber. Its 9.6 µg of Biotin covers 32% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.
Selected: 1 serving (medium) · 120 g
50
KCAL / 120G
Carbs
7.3g
· 3% DV
Protein
2.2g
· 4% DV
Fat
1.7g
· 2% DV
Fiber
2.4g
· 9% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 55% · Protein 17% · Fat 28%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 50 kcal | |
| Total fat | 1.7 g | 2% |
| Saturated fat | 0.24 g | 1% |
| Trans fat | 0 g | |
| Sodium | 744 mg | 32% |
| Total carbohydrate | 7.3 g | 3% |
| Fiber | 2.4 g | 9% |
| Protein | 2.2 g | 4% |
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 |
|---|---|---|
| 1 serving (medium) | 120 g | 50 kcal |
| 1 tablespoon (small) | 15 g | 6 kcal |
| 2 tablespoon (medium) | 30 g | 13 kcal |
| 4 tablespoon (large) | 60 g | 25 kcal |
| ½ cup (medium) | 70 g | 29 kcal |
| 1 piece (small) | 90 g | 38 kcal |
| 100 g | 100 g | 42 kcal |
| 1 cup (large) | 140 g | 59 kcal |
| 1 serving (large) | 180 g | 76 kcal |
Calculated from 42 calories per 100 g.
To make mushrooms marinated with onion, cook cleaned mushrooms, then toss them with sliced onion, oil, vinegar or lemon juice, and seasonings. Chill the mixture in a covered container so the mushrooms can absorb the dressing.
Mushrooms marinated with onion usually contain mushrooms, onion, oil, and an acidic ingredient such as vinegar or lemon juice. Garlic, herbs, pepper, or other seasonings are common additions, while the exact dressing varies by recipe.
Yes, cook the mushrooms before marinating them at home. Cooking gives them a tender texture and is safer than relying on vinegar or lemon juice to make raw mushrooms suitable for eating.
Let mushrooms marinated with onion chill for at least a few hours; leaving them overnight helps the dressing flavor the mushrooms more fully. Keep them refrigerated while they marinate rather than leaving them out at room temperature.
Mushrooms marinated with onion are usually served chilled as an appetizer, side dish, or salad addition. They pair well with grilled foods and sandwiches; drain excess dressing before serving and add fresh herbs if desired.
Homemade mushrooms marinated with onion are best eaten within about 3–4 days when kept covered in the refrigerator. Use a clean utensil each time, and discard them if they have been left at room temperature for a long time.
Mushrooms marinated with onion can turn watery because mushrooms release liquid as they cook and sit in the dressing. Cook them without crowding the pan, let them cool, and drain excess liquid before adding the marinade.
Button mushrooms are an easy, widely available choice for mushrooms marinated with onion. Choose pieces of similar size so they cook evenly; leave small mushrooms whole and slice larger ones to help the dressing reach their centers.
Yes, canned mushrooms can be used for mushrooms marinated with onion. Drain and rinse them first to remove excess brine, then taste the dressing before adding salt because canned mushrooms may already be salty.
Mushrooms marinated with onion can be a vegetable-based appetizer, but prepared versions may contain a lot of sodium. For a lower-sodium homemade batch, use less added salt and control how much dressing goes into each serving.
Vitamins
Biotin
9.6µg · 32% DV
B5
1.32mg · 26% DV
B3
4.08mg · 26% DV
B2
0.26mg · 20% DV
Minerals
Sodium
744mg · 32% DV
Copper
0.26mg · 29% DV
Selenium
7.2µg · 13% DV
Phosphorus
74mg · 11% DV
Potassium ⭐
252mg · 7% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 50 calories in 1 serving (medium) (120 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.
Mushrooms marinated with onion are a cold dish made by letting mushrooms sit with sliced onion, an acidic ingredient such as vinegar or lemon, a little oil and seasonings. The exact marinade varies by recipe, and the dish is served in many cuisines rather than belonging to one specific tradition.
Enjoy it as an appetizer, alongside a main meal, or tossed into a salad; its tangy, savoury flavour and tender texture pair well with fresh herbs and crusty bread. It is relatively light, with about 42 calories per 100 g. Marinades can be salty, so if you are watching your sodium intake, drain the mushrooms and use a lighter hand with the brine.
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.
No known major allergens
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
0.24g
MONOUNSATURATED
0.42g
POLYUNSATURATED
0.42g
Omega 6:3 ratio 9.5:1
Above the ideal 4:1 (9.5:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.