PlainVitamins

Magnesium Optimizer

by Jarrow Formulas · tablet or pill · 200 tablets

  • On the market (NIH)
  • UPC 7 90011 13007 9
  • DSLD label 307647
  • Serving 2 tablets
  • 100 servings

Magnesium Optimizer by Jarrow Formulas lists 4 ingredients, 4 with an amount per serving of 2 tablets, such as 2 mg of vitamin B6, 100 mg of magnesium, 50 mg of potassium and 350 mg of taurine. Its current label entered the NIH Dietary Supplement Label Database on February 22, 2024.

What is in Magnesium Optimizer?

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 Optimizer: Supplement Facts rows against the market (DSLD label 307647, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxal 5-Phosphate2 mg118%Vitamin B6 in Magnesium Optimizer against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 4 mg.

Magnesiumas Magnesium Malate100 mg24%Magnesium in Magnesium Optimizer against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 200 mg.

Potassiumas Potassium Citrate50 mg1%Potassium in Magnesium Optimizer against 11,614 products50 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg50 mg

72% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 100 mg.

Taurine350 mgTaurine in Magnesium Optimizer against 2,337 products350 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.350 mg

60% of 2,337 products listing taurine give more (median 500 mg). Per day at the most servings: 700 mg.

Source: NIH ODS Dietary Supplement Label Database, label 307647 (entered February 22, 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?

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 Magnesium Optimizer'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
Suggested use: Adults take 2 tablets 1-2 times a day with meals or as directed by your qualified healthcare professional.
Warnings
Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use.
Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use. Keep out of the reach of children.
Do not use if safety seal is damaged or missing.
Allergens and what it does not contain
Non-GMO Gluten free
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 307647.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Calcium Carbonate, Hydroxypropyl Cellulose, Croscarmellose Sodium, Magnesium Stearate, Hydroxypropylmethylcellulose, Glycerin, Silicon Dioxide.

How many labels does Magnesium Optimizer have?

7 labels are on file under this name since April 26, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 307647 (current) Entered February 22, 2024 · on the market · 200 tablets · UPC 7 90011 13007 9
  2. Label 264900 Entered June 16, 2022 · off the market January 4, 2024 · 200 tablets · UPC 7 90011 13007 9
  3. Label 243394 Entered March 25, 2021 · off the market October 15, 2021 · 200 tablets · UPC 7 90011 13007 9
  4. Label 212304 Entered December 22, 2019 · off the market January 4, 2024 · 200 tablets · UPC 7 90011 13007 9
  5. Label 37432 Entered October 10, 2014 · off the market October 23, 2019 · 100 tablets · UPC 7 90011 13007 9
  6. Label 29547 Entered January 24, 2014 · off the market September 4, 2014 · 100 tablets · UPC 7 90011 13007 9
  7. Label 7841 Entered April 26, 2012 · off the market December 13, 2013 · 100 Easy-Solv(R) Tablets · UPC 7 90011 13007 9

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

Who makes it?

The label names Jarrow Formulas, Inc. (distributor), Sherman Oaks, CA. All Jarrow Formulas products.

Where next?