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How Many Calories in Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled?

✓ Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by Jordan Morley, Editorial Reviewer. Last reviewed: 27 October 2026.

Fact-checked against original USDA source data by Jordan Morley, Editorial Reviewer. Not a registered dietitian — nutrition figures are sourced directly from USDA FoodData Central, not independently assessed medical advice.

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29
calories per 100g
35 calories per 1 cup sliced (121g)
MORiSH high-protein snacks — try alongside
3.3gProtein
4.4gCarbs
0.6gFat
2.2gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)8 kcal0.9g
100g29 kcal3.3g
1 cup sliced35 kcal4.0g
grams
29kcal
3.3gprotein
4.4gcarbs
0.6gfat
2.2gfibre

A mushrooms, portabella, exposed to ultraviolet light, grilled contains 29 calories per 100g. A typical 1 cup sliced (121g) provides about 35 calories. Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled is low in calories. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled Nutrition Facts

NutrientPer 100gPer serving (121g)
Calories29 kcal35 kcal
Protein3.3g4.0g
Carbohydrates4.4g5.3g
of which Sugars2.3g2.8g
Fat0.6g0.7g
of which Saturates0.0g0.0g
Fibre2.2g2.7g
Sodium11.0mg13mg
Potassium437.0mg529mg
Calcium3.0mg4mg
Iron0.4mg0.5mg
Vitamin C0.0mg0.0mg
Vitamin A0.0µg0µg
Selenium21.9µg26µg
Riboflavin (B2)0.4mg0.5mg

% 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.

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Have a cat or dog? Check whether mushrooms, portabella, exposed to ultraviolet light, grilled 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 mushrooms, portabella, exposed to ultraviolet light, grilled 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 mushrooms, portabella, exposed to ultraviolet light, grilled fit your diet?

Low-carb / keto

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled contains 4.4g of carbohydrate per 100g, low enough to fit comfortably within most low-carb or ketogenic daily carb allowances — check the fat and protein split above against your specific macro targets.

Weight management

At 29 calories per 100g, mushrooms, portabella, exposed to ultraviolet light, grilled is calorie-light relative to its volume, which can help keep a meal within a calorie target without needing very small portions.

Frequently Asked Questions

How many calories in mushrooms, portabella, exposed to ultraviolet light, grilled per 100g?

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled contains 29 calories per 100g, based on USDA reference data.

Is mushrooms, portabella, exposed to ultraviolet light, grilled high in calories?

A 1 cup sliced of mushrooms, portabella, exposed to ultraviolet light, grilled (121g) has around 35 calories — roughly 2% of a 2,000-calorie daily intake.

Is mushrooms, portabella, exposed to ultraviolet light, grilled good for weight loss?

At 29 calories per 100g, mushrooms, portabella, exposed to ultraviolet light, grilled is relatively low in calories and can fit well into a weight-loss diet. A 1 cup sliced provides about 35 calories.

How much protein is in mushrooms, portabella, exposed to ultraviolet light, grilled?

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled contains 3.3g of protein per 100g.

Is mushrooms, portabella, exposed to ultraviolet light, grilled a good source of fibre?

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled is relatively low in fibre at 2.2g per 100g, so pairing it with fibre-rich sides (vegetables, whole grains, legumes) can help balance a meal.

How does mushrooms, portabella, exposed to ultraviolet light, grilled compare to beans, kidney, mature seeds, sprouted, raw?

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled has 29 calories per 100g, close to beans, kidney, mature seeds, sprouted, raw at 29 — 0 calories fewer per 100g. See the full macro breakdown above.

Is mushrooms, portabella, exposed to ultraviolet light, grilled keto-friendly?

Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled contains 4.4g of carbohydrate per 100g, which fits comfortably within most ketogenic daily carb allowances — check it against your specific daily carb target.

How many servings of mushrooms, portabella, exposed to ultraviolet light, grilled for 20g of protein?

With 3.3g of protein per 100g, you'd need roughly 606g of mushrooms, portabella, exposed to ultraviolet light, grilled to reach 20g of protein

Foods with a similar calorie count

Other vegetables closest to mushrooms, portabella, exposed to ultraviolet light, grilled by calories per 100g:

FoodCaloriesProteinCarbsFat
Mushrooms, Portabella, Exposed to Ultraviolet Light, Grilled (this page)29 kcal3.3g4.4g0.6g
Beans, Kidney, Mature Seeds, Sprouted, Raw29 kcal4.2g4.1g0.5g
Broccoli, Frozen, Spears, Unprepared29 kcal3.1g5.3g0.3g
Cabbage, Red, Cooked, Boiled, Drained, without Salt29 kcal1.5g6.9g0.1g
Cowpeas, Leafy Tips, Raw29 kcal4.1g4.8g0.2g
Kohlrabi, Cooked, Boiled, Drained, without Salt29 kcal1.8g6.7g0.1g
Mushrooms, Portabella, Grilled29 kcal3.3g4.4g0.6g

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