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Low calorie, source of fiber, rich in B vitamins and minerals
In season: Spring · Summer · Autumn
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 piece (medium) of Flat White Mushroom (40 g) has 9 calories. That works out to 22 calories per 100 g. It contains 1.3 g of carbs, 1 g of protein, 0.1 g of fat and 0.5 g of fiber. Its 6.4 µg of Biotin covers 21% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.
Selected: 1 piece (medium) · 40 g
9
KCAL / 40G
Carbs
1.3g
· 0% DV
Protein
1g
· 2% DV
Fat
0.1g
· 0% DV
Fiber
0.5g
· 2% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 51% · Protein 40% · Fat 9%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 9 kcal | |
| Total fat | 0.1 g | 0% |
| Saturated fat | 0.02 g | 0% |
| Trans fat | 0 g | |
| Sodium | 2.4 mg | 0% |
| Total carbohydrate | 1.3 g | 0% |
| Fiber | 0.5 g | 2% |
| Protein | 1 g | 2% |
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 piece (medium) | 40 g | 9 kcal |
| 1 piece (small) | 25 g | 6 kcal |
| 1 cup (small) | 50 g | 11 kcal |
| 1 piece (large) | 60 g | 13 kcal |
| 1 cup (chopped) | 70 g | 15 kcal |
| 2 piece (medium) | 80 g | 18 kcal |
| 100 g | 100 g | 22 kcal |
| 1 cup (small) | 100 g | 22 kcal |
| 1 serving (large) | 120 g | 26 kcal |
| 1 cup (large) | 150 g | 33 kcal |
Calculated from 22 calories per 100 g.
A flat white mushroom usually refers to a white cultivated mushroom with a flatter or more open cap, rather than a universally standardized separate species. The exact meaning can vary by seller, so its size and cap shape may differ.
Cook flat white mushrooms in a hot pan with a little oil, spreading them out so they brown instead of steam. Their broad caps work well grilled, roasted, or sautéed; add salt near the end to limit excess moisture.
Yes, fresh flat white mushrooms can be eaten raw, for example thinly sliced in a salad. Cooking softens them and brings out a deeper flavor. Clean them before eating and avoid any that are slimy or smell unpleasant.
They can be the same cultivated white mushroom, but “flat white” often describes a flatter or more open cap than the familiar closed button stage. The term is not used consistently everywhere, so the name alone does not guarantee a distinct variety.
No, you generally do not need to peel flat white mushrooms; their thin skin is edible. Wipe away dirt and trim any dry or damaged areas. Peeling is usually unnecessary and can remove edible mushroom flesh.
Wipe flat white mushrooms with a damp cloth or rinse them briefly under running water, then dry them well. Do not leave them soaking: they can hold water and are more likely to steam rather than brown in the pan.
Yes, flat white mushroom stems are edible. Trim off the dry or dirty ends; if the stems feel firmer than the caps, chop them smaller or give them a little extra cooking time.
Flat white mushrooms release moisture when the pan is crowded or not hot enough. Cook them in batches in a wide, hot pan so the liquid can evaporate and the caps can brown.
Keep flat white mushrooms unwashed in a breathable paper bag in the refrigerator, and clean them just before use. Trapped moisture can make them deteriorate faster; discard mushrooms that become slimy or develop an unpleasant smell.
Yes, but sautéing flat white mushrooms before freezing usually gives a better texture than freezing them raw. Cool them first, pack them airtight, and expect thawed mushrooms to be softer than fresh ones.
Vitamins
Biotin
6.4µg · 21% DV
B2
0.14mg · 11% DV
B5
0.48mg · 10% DV
B3
1.4mg · 9% DV
Minerals
Copper
0.12mg · 13% DV
Phosphorus
44mg · 6% DV
Selenium
3.2µg · 6% DV
Potassium ⭐
128mg · 4% DV
Sodium
2.4mg · 0% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 9 calories in 1 piece (medium) (40 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.
Flat White Mushroom is a white mushroom variety with a broad, relatively flat cap and a mild flavour. Its firm, fleshy texture makes it easy to use on its own or as part of a larger dish.
You can slice and sauté it, roast or grill it, fold it into an omelettes and pasta, or serve it raw in a salad. In many kitchens, mushrooms are used to add savoury depth to vegetables, grains and meat-free meals. Flat White Mushroom is low in calories and provides fibre, B vitamins and minerals; it has 22 calories per 100 g. For a lighter meal, cook it with plenty of vegetables and use oil sparingly.
High
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 1
Unprocessed
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
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
0.02g
MONOUNSATURATED
0.01g
POLYUNSATURATED
0.02g
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Nutrition data compiled from USDA FoodData Central and scientific sources.