PlainVitamins

Shiitake Maitake Standardized

by Nature's Way · capsule · 60 capsules

  • Off the market since June 2017 (NIH)
  • UPC 0 33674 64500 0
  • DSLD label 40619
  • Serving 1 capsule
  • 60 servings

Shiitake Maitake Standardized by Nature's Way lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 200 mg of oat, 100 mg of shiitake mushroom extract and 100 mg of maitake mushroom extract. Its current label entered the NIH Dietary Supplement Label Database on December 29, 2014.

What is in Shiitake Maitake Standardized?

Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Shiitake Maitake Standardized: Supplement Facts rows against the market (DSLD label 40619, January 2026 release)
IngredientAmount% DVAmong products listing it
Oat200 mgOats in Shiitake Maitake Standardized against 304 products200 mg per serving; the middle half of products list 50 mg to 500 mg, the median 187.5 mg.200 mg

Higher than 50% of 304 products listing oats (median 187.5 mg). Per day at the most servings: 400 mg.

Shiitake Mushroom extractas Beta Glucan, PolysaccharidesShiitake Mushroom extract (Form: 10% Polysaccharides, including Beta Glucan) PlantPart: stem, fruiting body100 mgShiitake Mushroom in Shiitake Maitake Standardized against 256 products100 mg per serving; the middle half of products list 33.75 mg to 200 mg, the median 100 mg.100 mg

43% of 256 products listing shiitake mushroom give more (median 100 mg). Per day at the most servings: 200 mg.

Maitake Mushroom extractas Beta Glucan, PolysaccharidesMaitake Mushroom extract (Form: 30% Polysaccharides, including Beta Glucan) PlantPart: stem, fruiting body100 mgMaitake Mushroom in Shiitake Maitake Standardized against 327 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 100 mg.100 mg

42% of 327 products listing maitake mushroom give more (median 100 mg). Per day at the most servings: 200 mg.

Source: NIH ODS Dietary Supplement Label Database, label 40619 (entered December 29, 2014), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Shiitake Maitake Standardized's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommendation: Take 1 capsule one to two times daily, preferably with food.
Warnings
Keep out of the reach of children.
Caution: Consult a healthcare professional before taking this product if you are pregnant or nursing a baby.

Source: label statements in DSLD label 40619.

What else is on the label?

Other ingredients: Gelatin, Cellulose, Magnesium Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Nature's Way(R).

How many labels does Shiitake Maitake Standardized have?

One label is on file, entered on December 29, 2014.

  1. Label 40619 (current) Entered December 29, 2014 · off the market June 5, 2017 · 60 capsules · UPC 0 33674 64500 0

DSLD also links this label to: Standardized Shiitake Maitake (image difference, same product), Shiitake Maitake (image difference, same product), Shiitake Maitake 250 mg (image difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Nature's Way Products, LLC (manufacturer), Green Bay, WI. All Nature's Way products.

Where next?