PlainVitamins

Glycine Powder

by Vital Nutrients · powder · 250 grams

  • On the market (NIH)
  • UPC 6 93465 11111 6
  • DSLD label 305046
  • Serving 2 to 4 g (one-half to one rounded teaspoon); amounts per 4 g
  • 62.5 servings

Glycine Powder by Vital Nutrients lists one ingredient: 4,000 mg of glycine per serving of 4 g. Its current label entered the NIH Dietary Supplement Label Database on January 24, 2024.

What is in Glycine Powder?

Each row as the label prints it, per serving of 4 g. 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).

Glycine Powder: Supplement Facts rows against the market (DSLD label 305046, January 2026 release)
IngredientAmount% DVAmong products listing it
Glycinefree form amino acid4,000 mgGlycine in Glycine Powder against 1,078 products4,000 mg per serving; the middle half of products list 100 mg to 846 mg, the median 300 mg.4,000 mg

Higher than 99% of 1,078 products listing glycine (median 300 mg). Per day at the most servings: 12,000 mg.

Source: NIH ODS Dietary Supplement Label Database, label 305046 (entered January 24, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 4,000 mg of glycine is higher than 99% of the 1,078 glycine products that print an amount; 7 list more.

The NIH database records 1 to 3 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?

6 products list the very same ingredients; the nearest amounts come first.

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
Recommendations: One-half to one rounded teaspoon 1 to 3 times daily, dissolved in water, in between or with meals, or as directed by your healthcare professional.
Warnings
Keep out of reach of children
Use only if safety seal is intact
Warning: If pregnant, consult your physician before taking.
Inner seal may lift off when cap is removed. Seal integrity is maintained until cap is removed.
Allergens and what it does not contain
Excludes: Coatings, binders, gluten (wheat, rye barley), milk/dairy (Casein, whey), soy protein, egg protein, sugar. Verified by independent testing.
Storage
Store sealed in a cool dry place

Source: label statements in DSLD label 305046.

How many labels does Glycine Powder have?

5 labels are on file under this name since March 23, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 305046 (current) Entered January 24, 2024 · on the market · 250 grams · UPC 6 93465 11111 6
  2. Label 207694 Entered October 23, 2019 · on the market · 250 grams · UPC 6 93465 11111 6
  3. Label 182333 Entered October 25, 2018 · off the market April 5, 2019 · 250 grams · UPC 6 93465 11111 6
  4. Label 27435 Entered December 24, 2013 · off the market April 16, 2018 · 250 grams · UPC 6 93465 11111 6
  5. Label 6853 Entered March 23, 2012 · off the market September 13, 2013 · 250 g · UPC 6 93465 11111 6

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

Who makes it?

The label names Vital Nutrients (manufacturer), Middletown, CT. All Vital Nutrients products.

Where next?