PlainVitamins

Magnesium Bis-Glycinate

by Source Naturals · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 0 21078 02132 2
  • DSLD label 295969
  • Serving 2 tablets
  • 60 servings

Magnesium Bis-Glycinate by Source Naturals lists 2 ingredients, 2 with an amount per serving of 2 tablets, such as 200 mg of magnesium and 140 mg of calcium, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Magnesium Bis-Glycinate?

Each row as the label prints it, per serving of 2 tablets. 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).

Magnesium Bis-Glycinate: Supplement Facts rows against the market (DSLD label 295969, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Protein1 g2%Protein in Magnesium Bis-Glycinate against 8,985 products1 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.1 g

77% of 8,985 products listing protein give more (median 16 g). Per day at the most servings: 2 g.

Magnesiumas Magnesium Bisglycinate200 mg50%Magnesium in Magnesium Bis-Glycinate against 14,003 products200 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg200 mg

Higher than 75% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 400 mg. 1.1 times the adult UL a day.

Calcium140 mg14%Calcium in Magnesium Bis-Glycinate against 17,831 products140 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg140 mg

Higher than 56% of 17,831 products listing calcium (median 115 mg). Per day at the most servings: 280 mg.

Source: NIH ODS Dietary Supplement Label Database, label 295969 (entered August 23, 2023), 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:

  • At 2 servings a day, the most its directions give, the label lists 400 mg of magnesium, 1.1 times the adult Tolerable Upper Intake Level.

The NIH database records 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?

3 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
Suggested Use: 2 tablets twice daily.
Warnings
Caution: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Allergens and what it does not contain
Suitable for vegetarians and Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 295969.

What else is on the label?

Other ingredients: Dibasic Calcium Phosphate, Stearic Acid, Modified Cellulose, Silica, Magnesium Stearate.

How many labels does Magnesium Bis-Glycinate have?

2 labels are on file under this name since August 23, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295969 (current) Entered August 23, 2023 · on the market · 120 tablets · UPC 0 21078 02132 2
  2. Label 295968 Entered August 23, 2023 · on the market · 60 tablets · UPC 0 21078 02131 5

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

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?