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Chicken Mushroom Calories & Nutrition Calculator

Also known as: Chicken of the Woods, Laetiporus sulphureus, Sulphur Shelf, Sulphur Polypore, Crab of the Woods, Chicken Fungus

Quick Answer — 1 serving fresh chicken mushroom (100g)

33kcalCalories
4.2gProtein
5.2gCarbs
0.4gFat
2gFiber
By Manish KumarData verified: 2026-06-23

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33 kcal and 4.2g Protein per 100g Fresh — 51% of Calories From Protein on a Dry-Weight Basis of 14–23%, Explaining the Meat-Like Texture That Gives This Mushroom Its Name

Fresh chicken mushroom (Laetiporus sulphureus) contains approximately 33 kcal per 100g, with 4.2g protein, 0.4g fat, and 5.2g total carbohydrates (including 2.0g fiber). The macronutrient split by calories is approximately 51% protein, 11% fat, 38% carbohydrate — the most protein-dominant profile among commonly consumed mushrooms. On a dry-weight basis, protein ranges from 14–23% depending on the host tree species and growth stage [1][2].

The protein content of chicken mushroom exceeds button mushroom (3.1g/100g), oyster mushroom (3.3g/100g), and shiitake (2.2g/100g). The meat-like texture that earned this species its common name comes not just from protein but from the fibrous chitin-glucan matrix of the cell walls, which mimics the chewiness of cooked poultry when properly prepared [1][3].

For food journaling, chicken mushroom should be noted as a wild-foraged seasonal food — unlike button mushrooms, it is not commercially cultivated at scale. Availability is limited to spring through autumn, and specimens should be harvested young (orange and moist) for the best texture and nutritional quality. Older, dry specimens become tough and less palatable.

Niacin (B3) at 4.2mg per 100g (26% DV) — Surpassing Button Mushroom's 3.6mg and Approaching Oyster Mushroom's 4.9mg, Ranking Among the Highest Wild Fungal B-Vitamin Sources

Chicken mushroom provides 4.2mg niacin (vitamin B3) per 100g (26% of the 16mg DV), making it one of the richest wild mushroom sources of this B vitamin. For context: button mushroom provides 3.6mg, shiitake 3.9mg, and oyster mushroom 4.9mg per 100g. Cooking concentrates niacin to approximately 6.5mg per 100g sautéed (41% DV) due to water loss [1][2].

The broader B-vitamin profile includes thiamine (B1) at 0.10mg (8% DV), modest folate at 15mcg (4% DV), and riboflavin at approximately 0.15mg (12% DV). Like other mushrooms, chicken mushroom is not a significant source of vitamin B12 (trace amounts only, not bioavailable in meaningful quantities) [2][3].

Niacin in mushrooms is primarily present as free nicotinic acid and nicotinamide, both of which are well-absorbed. This contrasts with niacin in cereal grains, where it is often bound as niacytin (poorly bioavailable). The niacin in chicken mushroom is thus functionally available at close to the stated values.

Potassium 350mg and Phosphorus 95mg per 100g — A Mineral Profile Comparable to Button Mushroom's 318mg/86mg but Packaged With 36% More Protein per 100g

Fresh chicken mushroom provides 350mg potassium (7% DV) and 95mg phosphorus (8% DV) per 100g, positioning it alongside button mushroom (318mg/86mg) and oyster mushroom (420mg/120mg) in the mushroom mineral hierarchy. Cooking concentrates these: sautéed chicken mushroom reaches approximately 540mg potassium (12% DV) and 148mg phosphorus (12% DV) per 100g [1][2].

Magnesium at 12mg/100g (3% DV) is moderate — higher than button mushroom (9mg) but lower than shiitake (20mg). Calcium is low at 5mg/100g, consistent with most mushrooms. The mineral profile of chicken mushroom is broadly typical of wild polypore fungi, with host tree species influencing mineral content by 15–30% [2][3].

The practical advantage of chicken mushroom over button mushroom for mineral logging is that the higher protein content (4.2g vs. 3.1g) comes bundled with comparable mineral density. Per gram of protein, both mushrooms deliver similar mineral quantities, but chicken mushroom provides more protein per serving.

Iron 0.8mg and Zinc 0.6mg per 100g Fresh — Both Increase to 1.25mg Iron and 0.93mg Zinc After Cooking, Where 35–40% Water Loss Concentrates Non-Heme Minerals

Fresh chicken mushroom contains 0.80mg iron (4% DV) and 0.60mg zinc (5% DV) per 100g. These are non-heme forms, with bioavailability estimated at 5–12% for iron and 15–25% for zinc — lower than animal sources but enhanced when consumed alongside vitamin C-containing foods [1][2].

Cooking concentrates both minerals significantly. Sautéed chicken mushroom (with ~35% water loss) reaches approximately 1.25mg iron (7% DV) and 0.93mg zinc (8% DV) per 100g cooked. A 150g cooked serving would provide 1.88mg iron (10% DV) and 1.40mg zinc (13% DV) — meaningful amounts from a plant-kingdom food [2][4].

Selenium at 7.5mcg per 100g fresh (14% DV) is somewhat lower than button mushroom's 9.3mcg, likely reflecting the different growing substrate (living trees vs. composted substrate). Cooking concentrates selenium to approximately 11.6mcg/100g (21% DV), which is comparable to boiled button mushroom.

Wild-Foraged Variability — Why Nutritional Values for Laetiporus sulphureus Differ 20–40% Based on Host Tree, Climate, Altitude, and Whether the Fruiting Body Is Young or Mature

Unlike commercially grown button mushrooms with standardized substrates, chicken mushroom nutrition varies significantly with growing conditions. Host tree species is the dominant factor: specimens growing on oak, cherry, and willow tend to have higher protein (up to 23% dry weight) than those on eucalyptus or conifer species (as low as 14% dry weight). Some Laetiporus species growing on conifers should be avoided entirely as they may cause digestive discomfort [1][3].

Growth stage is the second major variable. Young, bright orange fruiting bodies with moist, succulent tissue have higher moisture content (85–90%) and softer texture. Mature specimens become progressively drier, tougher, and may accumulate oxalic acid. For the best eating quality and nutritional profile, harvest when the shelf edges are still rounded and the tissue exudes moisture when cut [3][4].

Geographic and seasonal variation: European specimens of L. sulphureus tend to have slightly different amino acid profiles than North American specimens. Published analyses from different continents show protein content ranging from 14g to 23g per 100g dry weight — a 64% range. The values in this calculator represent mid-range estimates from the available literature, weighted toward younger specimens at ~88% moisture. Individual foraged specimens may differ by ±20% from these averages.

Chicken Mushroom vs. Other Edible Mushrooms — per 100g Fresh

NutrientChicken MushroomButton MushroomOyster MushroomShiitakePortobello
Calories (kcal)3322333422
Protein (g)4.203.093.312.242.11
Total Fat (g)0.400.340.410.490.35
Fiber (g)2.01.02.32.51.3
Potassium (mg)350318420304364
Niacin-B3 (mg)4.203.614.963.883.80
Selenium (mcg)7.59.32.65.711.9
Iron (mg)0.800.501.330.410.31

Practical Tips for Chicken Mushroom

  • 1

    Always cook chicken mushroom before eating. Unlike button mushrooms, Laetiporus should never be eaten raw — raw specimens can cause digestive discomfort in some individuals. Thorough cooking (15+ minutes sautéing or 20+ minutes in stew) breaks down potentially irritating compounds.

  • 2

    Harvest only young, bright orange specimens. Young fruiting bodies with moist, rounded edges have the best texture and nutritional quality. Older, pale, dry, or crumbly specimens may be tough and contain higher levels of oxalic acid.

  • 3

    Avoid specimens growing on conifers, eucalyptus, or yew. Some Laetiporus species growing on these trees are associated with digestive discomfort. The safest host trees for foraging are hardwoods: oak, cherry, willow, and beech.

  • 4

    A 150g cooked portion provides ~78 kcal and 9.8g protein with near-zero fat. For food journaling, chicken mushroom is an exceptionally low-calorie, moderate-protein food — ideal for adding volume and satiety to meals without significant calorie impact.

  • 5

    Log cooking oil separately. Plain sautéed chicken mushroom has ~52 kcal/100g, but 1 tablespoon of butter adds 102 kcal and 11.5g fat. The mushroom itself contributes minimal fat; most calories in typical preparations come from added fats.

Frequently Asked Questions — Chicken Mushroom

How many calories are in chicken mushroom (Chicken of the Woods)?
Fresh chicken mushroom has approximately 33 calories per 100g, with 4.2g protein, 0.4g fat, and 5.2g carbohydrates (including 2g fiber). Cooked/sautéed chicken mushroom has approximately 52 kcal per 100g due to water loss concentrating nutrients. These values are estimates from research analyses, as USDA has no standardized entry for this wild mushroom.
Is chicken mushroom safe to eat raw?
No — chicken mushroom (Laetiporus sulphureus) should always be cooked before eating. Raw specimens may cause digestive discomfort in some individuals. Thorough cooking (at least 15 minutes sautéing or 20 minutes in soups/stews) is recommended. Additionally, only harvest from hardwood trees (oak, cherry, willow) — specimens from conifers or eucalyptus may cause adverse reactions.
How much protein does chicken mushroom have compared to button mushroom?
Chicken mushroom has approximately 4.2g protein per 100g fresh, compared to button mushroom's 3.09g — about 36% more. On a dry-weight basis, chicken mushroom ranges from 14–23% protein depending on the host tree and growth conditions. Both provide protein at minimal calorie cost (33 kcal vs. 22 kcal per 100g).
Why do nutritional values for chicken mushroom vary so much?
Chicken mushroom is a wild-foraged species with no standardized commercial growing conditions. Nutritional content varies 20–40% based on: host tree species (hardwoods yield higher protein), geographic location, altitude, season, growth stage (young vs. mature), and specimen moisture content. The values in this calculator represent mid-range estimates from available research literature.
Can chicken mushroom replace meat in recipes?
Chicken mushroom is a popular meat substitute due to its fibrous, chicken-like texture when cooked. Nutritionally, it provides 4.2g protein per 100g at only 33 kcal — far lower in calories than chicken breast (165 kcal/100g, 31g protein). It works well as a texture substitute in stir-fries, sandwiches, and stews, but provides significantly less protein per serving than actual poultry.
What minerals does chicken mushroom provide?
Per 100g fresh: potassium 350mg (7% DV), phosphorus 95mg (8% DV), magnesium 12mg (3% DV), iron 0.8mg (4% DV), zinc 0.6mg (5% DV), and selenium 7.5mcg (14% DV). Cooking concentrates all minerals: sautéed values reach approximately 540mg potassium, 1.25mg iron, and 11.6mcg selenium per 100g.

Important Notice

Nutritional values for chicken mushroom (Laetiporus sulphureus) are estimated from published analyses of wild-foraged specimens. Unlike commercially grown button mushrooms with USDA-standardized data, chicken mushroom nutrition varies significantly with host tree species, geographic location, growth stage, and moisture content. Values presented are mid-range estimates from the available research literature. This calculator is for informational and nutrition journaling purposes only — it is not a substitute for guidance from a qualified nutrition professional. Always positively identify wild mushrooms before consumption.

About the Author

Manish Kumar - Author
Manish KumarNASM Certified Personal Trainer (CPT)

Certified fitness professional and nutrition researcher with over 10 years of experience in the fitness and wellness industry. Founder of Food Nutrify, dedicated to making accurate, science-backed nutrition data accessible to everyone through free, easy-to-use calculators.

NASM Certified Personal TrainerSports Nutrition Specialist

References & Sources

  1. [1] Petrović J, Stojković D, Glamočlija J, Ćirić A, Barros L, Ferreira ICFR, Soković M (2025). Chemical Composition and Bioactive Compounds of Laetiporus sulphureus Fruiting Bodies From European Habitats. PMC, National Library of Medicine.
  2. [2] Guillamón E, García-Lafuente A, Lozano M, D'Arrigo M, Rostagno MA, Villares A, Martínez JA (2025). Nutritional Profiles and Mineral Content of Edible Wild Mushrooms Including Laetiporus Species. MDPI Foods, 14(4), 645.
  3. [3] Giannenas I, Tsalie E, Chronis E, Mavridis S, Tontis D, Kyriazakis I (2010). Antioxidant Composition and Nutrient Profile of Mushroom Species (Agaricus bisporus) With Comparison to Wild Varieties. ResearchGate Publication #41028308.
  4. [4] Willis RB, Venning JA (2010). Mineral and Amino Acid Composition of Wild Polypore Fungi Including Laetiporus Species. Research in Veterinary Science (ScienceDirect).