Mushrooms

Shiitake

The edible shiitake mushroom, as powder or extract. Taken for the immune system – studies are small.

24 products from US online stores, sorted by what 1,000 mg of shiitake costs – not by the price per pack.

7.9¢Lowest cost
per 1,000 mg shiitake

Prices checked Nov 1, 2026, US
No paid placements

What does 1,000 mg mean?

shiitake per serving in most of the products we checked: 600–1,500 mgshiitake per serving in most of the products we checked

1,000 mg is about one serving: half of the 24 products we checked have up to 1,000 mg per serving, the other half more.
There’s no official daily amount for shiitake.

We compare by 1,000 mg only so products line up – it’s not a recommendation. Not medical advice.

Why are most quality scores low?

How the 24 products score

Very good 90+: 0
Good 75+: 10
Fair 60+: 0
Low under 60: 14

have no seal from an independent testing program: 100%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 4 whose label says “third-party tested”
use a weaker form: 58%use a weaker form6 of 30 form points – most often mycelium grown on grain instead of the mushroom itself
hide amounts in a “proprietary blend”: 38%hide amounts in a “proprietary blend”5 of 20 transparency points – you only see the total

The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.

We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works

Pack size

Compare packs of a similar size.

All sizesmixed24 productsSmallup to 30 × 1,000 mg12 productsfrom $0.23Medium30–60 × 1,000 mg5 productsfrom $0.26Large60+ × 1,000 mg7 productsfrom 7.9¢

All sizes in one list can affect the results – big packs usually cost less per 1,000 mg. Pick a size above to compare packs that are alike.

Cost per 1,000 mgQualityPack price

24 products · cheapest per 1,000 mg shiitake first

Rank 1
Nutricost
Organic Shiitake Mushroom Powder, Unflavored
Powder
85Good qualityMade in USA
7.9¢
per 1,000 mg
Lowest
Pack
$17.95227 g (8 oz)227 servings
Shiitake per serving
1,000 mgin 1 g
Pack lasts
227 daysif you take 1,000 mg a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 2
Nutricost
Organic Shiitake Mushroom Powder
Powder
80Good qualityMade in USA
8.8¢
per 1,000 mg
11% more
Pack
$19.97227 g (8 oz)227 servings
Shiitake per serving
1,000 mgin 1 g
Pack lasts
227 daysif you take 1,000 mg a day
nutricost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 3
Micro Ingredients
Organic Shiitake Mushroom Powder
Powder
75Good qualityCountry not stated
9.9¢
per 1,000 mg
25% more
Pack
$22.39227 g (8 oz)227 servings
Shiitake per serving
1,000 mgin 1 g
Pack lasts
227 daysif you take 1,000 mg a day
microingredients.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 4
California Gold Nutrition
Fungiology, Certified Organic Shiitake Powder
Powder
56Low qualityCountry not stated
$0.15
per 1,000 mg
84% more
Pack
$17.45120 g (4.2 oz)60 servings
Shiitake per serving
2,000 mgin 2 g
Pack lasts
120 daysif you take 1,000 mg a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 5
Nutricost
Organic Shiitake Mushroom Powder
Powder
75Good qualityMade in USA
$0.15
per 1,000 mg
89% more
Pack
$14.97100 g (3.5 oz)13 servings
Shiitake per serving
7,500 mgin 7.5 g
Pack lasts
100 daysif you take 1,000 mg a day
nutricost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 6
Nutricost
Shiitake Mushroom
Powder · Capsules
80Good qualityMade in USA
$0.19
per 1,000 mg
135% more
Pack
$16.75180 capsules90 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
90 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 7
Nutricost
Made With Organic Shiitake Mushroom Capsules
Powder · Capsules
80Good qualityCountry not stated
$0.20
per 1,000 mg
153% more
Pack
$17.97180 capsules90 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
90 daysif you take 2 capsules (1,000 mg) a day
nutricost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 8
Swanson Vitamins
Full Spectrum Shiitake Mushroom
Powder · Capsules
56Low qualityCountry not stated
$0.23
per 1,000 mg
195% more
Pack
$6.9960 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
swansonvitamins.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 9
Swanson Vitamins
Full Spectrum Shiitake Mushroom, 500 mg
Powder · Capsules
56Low qualityCountry not stated
$0.24
per 1,000 mg
209% more
Pack
$7.3460 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 10
Swanson Vitamins
Shiitake Mushroom Extract
Extract · Capsules
75Good qualityCountry not stated
$0.26
per 1,000 mg
226% more
Pack
$15.49120 capsules60 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
60 daysif you take 2 capsules (1,000 mg) a day
swansonvitamins.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 11
Swanson Vitamins
Shiitake Mushroom Extract, 500 mg
Extract · Capsules
80Good qualityCountry not stated
$0.27
per 1,000 mg
243% more
Pack
$16.26120 capsules60 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
60 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 12
Solaray
Mushrooms, Shiitake Mushroom, 600 mg
Powder · Capsules
56Low qualityCountry not stated
$0.37
per 1,000 mg
372% more
Pack
$22.39100 capsules
Shiitake per serving
600 mgin 1 capsule
Pack lasts
50 daysif you take 2 capsules (1,200 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 13
Mushroom Wisdom
Super Shiitake
Extract · Tablets
80Good qualityCountry not stated
$0.73
per 1,000 mg
820% more
Pack
$26.20120 tablets30 servings
Shiitake per serving
1,200 mgin 4 tablets
Pack lasts
30 daysif you take 4 tablets (1,200 mg) a day
mushroomwisdom.com (opens in a new tab)
Checked Oct 14, 2026 · Label
Rank 14
Solaray
Fermented Shiitake Mushrooms
Powder · Capsules
56Low qualityCountry not stated
$0.87
per 1,000 mg
1,000% more
Pack
$26.0960 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 15
Quality of Life
AHCC - Kinoko Platinum
Powder · Capsules
41Low qualityCountry not stated
$1.78
per 1,000 mg
2,147% more
Pack
$79.9560 capsules30 servings
Shiitake per serving
1,500 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,500 mg) a day
qol.us (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 16
Nature's Answer
Shiitake Extract - Alcohol Free Liquid
Extract · Liquid
80Good qualityMade in USA
$1.89
per 1,000 mg
2,287% more
Pack
$16.9915 servings
Shiitake per serving
600 mg
Pack lasts
9 daysif you take 1,000 mg a day
naturesanswer.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 17
Quality of Life
AHCC - Kinoko Gold
Powder · Capsules
41Low qualityCountry not stated
$2.00
per 1,000 mg
2,427% more
Pack
$59.9560 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
qol.us (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 18
Swanson Vitamins
AHCC - Maximum Strength
Powder · Capsules
41Low qualityCountry not stated
$2.00
per 1,000 mg
2,427% more
Pack
$59.9560 capsules
Shiitake per serving
500 mgin 1 capsule
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
swansonvitamins.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 19
American Biosciences
ImmPower AHCC, 500 mg
Powder · Capsules
41Low qualityCountry not stated
$2.27
per 1,000 mg
2,764% more
Pack
$67.9560 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 20
Quality of Life
AHCC - Kinoko Rx
Powder · Softgels
39Low qualityCountry not stated
$3.05
per 1,000 mg
3,761% more
Pack
$54.9560 softgels30 servings
Shiitake per serving
600 mgin 2 softgels
Pack lasts
15 daysif you take 4 softgels (1,200 mg) a day
qol.us (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 21
Source Naturals
AHCC
Extract · Capsules
41Low qualityCountry not stated
$3.16
per 1,000 mg
3,898% more
Pack
$94.8560 capsules30 servings
Shiitake per serving
1,000 mgin 2 capsules
Pack lasts
30 daysif you take 2 capsules (1,000 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 22
Quality of Life
Kinoko Rx, AHCC
Extract · Softgels
39Low qualityCountry not stated
$3.21
per 1,000 mg
3,954% more
Pack
$57.7060 softgels30 servings
Shiitake per serving
600 mgin 2 softgels
Pack lasts
15 daysif you take 4 softgels (1,200 mg) a day
vitacost.com (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 23
Quality of Life
AHCC - Kinoko Rx - Duo
Powder · Softgels
39Low qualityCountry not stated
$6.11
per 1,000 mg
7,621% more
Pack
$109.9060 softgels30 servings
Shiitake per serving
600 mgin 2 softgels
Pack lasts
15 daysif you take 4 softgels (1,200 mg) a day
qol.us (opens in a new tab)
Checked Nov 1, 2026 · Label
Rank 24
Quality of Life
AHCC - Kinoko Rx - Trio
Powder · Softgels
39Low qualityCountry not stated
$9.16
per 1,000 mg
11,482% more
Pack
$164.8560 softgels30 servings
Shiitake per serving
600 mgin 2 softgels
Pack lasts
15 daysif you take 4 softgels (1,200 mg) a day
qol.us (opens in a new tab)
Checked Nov 1, 2026 · Label

Good to know

Fact: 11,482%more per 1,000 mg for the most expensive product than for the cheapest.
Fact: 226%more per 1,000 mg for the cheapest extract than for the cheapest powder.

How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check

The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.

How we calculate

Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.

Found a mistake or a product we should add? Email us

Shiitake

What does 1,000 mg mean?

Why are most quality scores low?

Pack size

Organic Shiitake Mushroom Powder, Unflavored

Organic Shiitake Mushroom Powder

Organic Shiitake Mushroom Powder

Fungiology, Certified Organic Shiitake Powder

Organic Shiitake Mushroom Powder

Shiitake Mushroom

Made With Organic Shiitake Mushroom Capsules

Full Spectrum Shiitake Mushroom

Full Spectrum Shiitake Mushroom, 500 mg

Shiitake Mushroom Extract

Shiitake Mushroom Extract, 500 mg

Mushrooms, Shiitake Mushroom, 600 mg

Super Shiitake

Fermented Shiitake Mushrooms

AHCC - Kinoko Platinum

Shiitake Extract - Alcohol Free Liquid

AHCC - Kinoko Gold

AHCC - Maximum Strength

ImmPower AHCC, 500 mg

AHCC - Kinoko Rx

AHCC

Kinoko Rx, AHCC

AHCC - Kinoko Rx - Duo

AHCC - Kinoko Rx - Trio

Good to know