Calories in Mushrooms: Button, Oyster and Shiitake

By NYUS Inc. · Published 27 October 2026

Mushroom is one food with several records, and the number depends on the type and on whether it is raw, boiled or canned. This guide uses two datasets and keeps them apart. The SR Legacy table of USDA FoodData Central has eight mushroom records we use (white raw and boiled, crimini, portabella, oyster, enoki, shiitake and canned), each with the cup or piece weights printed on its record page. IFCT 2017, the Indian Food Composition Tables from ICMR-NIN, has four mushroom rows (button, chicken, shiitake and dried oyster); every one is a single-region row, and the page says so on each row. IFCT 2017 prints energy in kilojoules, so the kcal for those rows are our conversion.

The short answer

By the SR Legacy records, 1 cup (70 g) of raw white mushroom pieces or slices is about 15 kcal (22 kcal per 100 g), 1 cup (156 g) of boiled white mushroom pieces about 44 kcal (28 per 100 g), 1 cup (86 g) of sliced raw oyster mushroom about 28 kcal (33 per 100 g) and 1 cup (65 g) of sliced raw enoki about 24 kcal (37 per 100 g). By IFCT 2017 Table 1 (single-region rows), fresh button mushroom is 27 kcal per 100 g, fresh chicken mushroom 21, fresh shiitake 58 and dried oyster mushroom 244. Our reading: the raw SR Legacy rows are all between 22 and 37 kcal per 100 g, so the cup you pick matters more than the type, and the dried IFCT row is not comparable to the fresh ones.

SR Legacy: per portion

Each figure is our arithmetic: kcal per 100 g times the grams in the portion, divided by 100, rounded to the nearest kcal with half rounding up. Every portion weight is printed on the SR Legacy record page, none is ours.

The sums: white raw 22 × 70 / 100 = 15.4, so 15 kcal; white boiled 28 × 156 / 100 = 43.68, so 44 kcal; crimini 22 × 72 / 100 = 15.84, so 16 kcal; portabella 22 × 86 / 100 = 18.92, so 19 kcal; oyster raw 33 × 86 / 100 = 28.38, so 28 kcal; enoki 37 × 65 / 100 = 24.05, so 24 kcal; shiitake 34 × 19 / 100 = 6.46, so 6 kcal; canned 25 × 156 / 100 = 39, so 39 kcal. Protein, fat and carbohydrate are the same arithmetic on the per 100 g figures, rounded to 0.1 g with half rounding up.

Other portions printed on the SR Legacy records

The sums: white raw 18 g: 22 × 18 / 100 = 3.96, so 4 kcal; white raw 23 g: 22 × 23 / 100 = 5.06, so 5 kcal; white raw 96 g: 22 × 96 / 100 = 21.12, so 21 kcal; white boiled 12 g: 28 × 12 / 100 = 3.36, so 3 kcal; portabella 84 g: 22 × 84 / 100 = 18.48, so 18 kcal; crimini 87 g: 22 × 87 / 100 = 19.14, so 19 kcal; crimini 20 g: 22 × 20 / 100 = 4.4, so 4 kcal; oyster raw 15 g: 33 × 15 / 100 = 4.95, so 5 kcal; enoki 64 g: 37 × 64 / 100 = 23.68, so 24 kcal; canned 132 g: 25 × 132 / 100 = 33, so 33 kcal; canned 78 g: 25 × 78 / 100 = 19.5, so 20 kcal; canned 47 g: 25 × 47 / 100 = 11.75, so 12 kcal.

Two example weights that are ours

The two weights below, 200 g of raw white mushrooms and 150 g of boiled white mushrooms, are our own example weights, not dataset values and not measurements. They only show how the per 100 g figure scales; weigh yours.

The sums: white raw 200 g: 22 × 200 / 100 = 44, so 44 kcal; white boiled 150 g: 28 × 150 / 100 = 42, so 42 kcal.

IFCT 2017: the four mushroom rows

IFCT 2017, Table 1 (Proximate Principles), per 100 g edible portion, PDF p. 56. IFCT 2017 says all its data except poultry and egg is for raw food (PDF p. 27); the first three rows are fresh and the fourth is a dried mushroom, so its per 100 g figure is not a fresh-weight figure. IFCT prints energy in kilojoules; kcal is our conversion at 1 kcal = 4.184 kJ, rounded to the nearest kcal with half rounding up. Every row has No. of Regions = 1, so each is the figure for one region and none is an average over several regions.

The conversions: J001 115 / 4.184 = 27.49, so 27 kcal; J002 89 / 4.184 = 21.27, so 21 kcal; J003 243 / 4.184 = 58.08, so 58 kcal; J004 1019 / 4.184 = 243.55, so 244 kcal.

What stands out in the numbers

• SR Legacy 169251, 168434 and 169255 (white, crimini and portabella, raw) each print 22 kcal per 100 g.
• SR Legacy 169382 (enoki, raw) prints the highest raw figure here, 37 kcal and 7.81 g of carbohydrate per 100 g, against 22 kcal and 3.26 g for SR Legacy 169251 (white, raw).
• SR Legacy 169252 (white, boiled) prints 28 kcal per 100 g against 22 for SR Legacy 169251 (white, raw); its 156 g cup is more than twice the 70 g raw cup, which is why a boiled cup is about 44 kcal and a raw one about 15.
• IFCT J001 (button, fresh) is 27 kcal and 3.68 g of protein per 100 g, and IFCT J003 (shiitake, fresh) is 58 kcal, both single-region rows.
• IFCT J004 (oyster, dried) prints 19.04 g of protein and 1019 kJ per 100 g, a dried weight, not a fresh one.

Why these are reference rows, not your plate

• Raw and plain rows, no dish. No row here is a mushroom curry, matar mushroom, mushroom fry or any dish with oil and masala, so this page gives no number for those.
• Single-region IFCT rows. All four IFCT rows are a single region; our existing low-calorie foods list shows the button mushroom row (J001) in a longer table.
• The records' own notes. The record pages mark the energy and carbohydrate of all eight SR Legacy records "Calculated", the protein and fat of 169255, 169242, 168580, 168434 and 169382 "Analytical", the protein and fat of 169251 "Aggregated data involving combinations of data with different source codes when at least one code is not 1, 6, 12, or 13", and carry no note on the protein and fat of 169252 and 169254.
• Cup sizes are the record's. A cup you measure may hold more or less; weigh when you can.
• For a packaged product, the pack wins. This page uses no pack labels.

How to log it so the numbers hold

• Log by weight. A 200 g portion of raw white mushrooms (our example weight, not a dataset value) on SR Legacy 169251 is 22 × 200 / 100 = 44 kcal by our arithmetic.
• Log oil and masala separately. Our spoon guide gives a level teaspoon of oil or ghee.
• Compare with other vegetables. Our common vegetables guide gives bhindi, lauki, palak and cabbage per 100 g.
• Do not mix datasets inside one day. If you log a mushroom from IFCT 2017, keep to that row for the same dish.

Where NYUS fits (our app)

We make NYUS, so read this as ours. NYUS is an AI fitness and nutrition coach in early access on Android, with no ads and no data selling. You log foods yourself by searching 8,900+ Indian and global foods or by barcode, and a weekly check-in adjusts your calories, macros and step goal once enough is logged. Barcode coverage of Indian packaged foods is not complete, so search by name when a scan finds nothing.

What this page leaves out

• A calorie, protein or fat target, and any claim about what these foods do to your weight or health: we have not looked up one for any person, so we give none. If you have a medical condition, ask your doctor or dietitian.
• Any named brand, pack label or FSSAI figure: not used, so the page does not mix label numbers with the records above.
• Mushroom curry, matar mushroom, mushroom fry, soup and other cooked dishes: none is among the four IFCT rows or eight SR Legacy records used, so no number here.
• Other mushroom records (straw mushroom, morel, chanterelle, dried, UV-exposed and other preparations): not used here.
• Nutrients beyond energy, protein, fat and carbohydrate, including vitamins, minerals and sodium: not covered here.

Sources

• USDA FoodData Central, SR Legacy 169251 (Mushrooms, white, raw): Energy 22 kcal, protein 3.09 g, total fat 0.34 g, carbohydrate 3.26 g per 100 g; portions: 1 small 10 g, 1 cup pieces or slices 70 g, 1 slice 6 g, 1 cup whole 96 g, 1 medium 18 g, 1 large 23 g, 0.5 cup pieces 35 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 169252 (Mushrooms, white, cooked, boiled, drained, without salt): Energy 28 kcal, protein 2.17 g, total fat 0.47 g, carbohydrate 5.29 g per 100 g; portions: 1 cup pieces 156 g, 1 mushroom 12 g, 1 tbsp 9.8 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 168434 (Mushrooms, brown, italian, or crimini, raw): Energy 22 kcal, protein 2.5 g, total fat 0.1 g, carbohydrate 4.3 g per 100 g; portions: 1 cup sliced 72 g, 1 cup whole 87 g, 1 piece whole 20 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 169255 (Mushrooms, portabella, raw): Energy 22 kcal, protein 2.11 g, total fat 0.35 g, carbohydrate 3.87 g per 100 g; portions: 1 piece whole 84 g, 1 cup diced 86 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 168580 (Mushrooms, oyster, raw): Energy 33 kcal, protein 3.31 g, total fat 0.41 g, carbohydrate 6.09 g per 100 g; portions: 1 small 15 g, 1 large 148 g, 1 cup sliced 86 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 169382 (Mushrooms, enoki, raw): Energy 37 kcal, protein 2.66 g, total fat 0.29 g, carbohydrate 7.81 g per 100 g; portions: 1 large 5 g, 1 medium 3 g, 1 cup sliced 65 g, 1 cup whole 64 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 169242 (Mushrooms, shiitake, raw): Energy 34 kcal, protein 2.24 g, total fat 0.49 g, carbohydrate 6.79 g per 100 g; portion: 1 piece whole 19 g (read 27 Oct 2026).
• USDA FoodData Central, SR Legacy 169254 (Mushrooms, canned, drained solids): Energy 25 kcal, protein 1.87 g, total fat 0.29 g, carbohydrate 5.09 g per 100 g; portions: 1 can 132 g, 1 medium 12 g, 1 cup 156 g, 8 caps 47 g, 0.5 cup pieces 78 g, 1 small 7 g, 10 slices 40 g, 1 large 16 g (read 27 Oct 2026).
• ICMR-NIN, Indian Food Composition Tables 2017 (IFCT 2017), Table 1 (Proximate Principles and Dietary Fibre), PDF p. 56 (J001 Button mushroom, fresh; J002 Chicken mushroom, fresh; J003 Shiitake mushroom, fresh; J004 Oyster mushroom, dried), read 27 Oct 2026; the raw-food statement is on PDF p. 27.
• nyus.in, the NYUS landing page, read on 27 Oct 2026 for the app statements in the NYUS section and the CTA.

The kJ to kcal conversions, the per portion figures, the sums, the rounding, the 200 g and 150 g example weights, the comparisons and every sentence starting "Our reading" are NYUS's own arithmetic or opinion, not from IFCT or USDA. The IFCT values and the SR Legacy portion weights are as printed in those datasets. The names in the first column are the datasets' own row and record names.

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