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Non-nutrient/non-botanical · Supplement ingredient

Magnesium

Magnesium is listed on 27,686 U.S. supplement product labels in the NIH DSLD, #3 of 4,614 by label frequency.

27,686
Products
#3 of 4,614
By frequency
NIH
Dosing fact sheet
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Magnesium dosing reference

NIH ODS Fact Sheet →
Recommended Dietary Allowance (RDA / AI)
400–420 mg for adult men, 310–320 mg for adult women
Tolerable Upper Intake Level (UL)
350 mg from supplements only (no UL on dietary intake) for adults
Drug interactions
Reduces absorption of bisphosphonates, quinolone and tetracycline antibiotics. May enhance effect of muscle relaxants.
Pregnancy & lactation
RDA during pregnancy is 350–360 mg; lactation 310–320 mg.

Statement required by FDA: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Source: https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/

How common is Magnesium?

Number of supplement labels listing Magnesium vs nearby non-nutrient/non-botanical ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing Magnesium

St. John's Wort
Dr. Rico Perez
6 ingredients · Botanical
On Market
St. John's Wort
Cyto-Matrix
5 ingredients · Botanical
On Market
St. John's Wort 1100 mg
NusaPure
6 ingredients · Botanical
On Market
St. John's Wort 300 mg
Windmill Herbals
8 ingredients · Botanical
On Market
St. John's Wort 300 mg
Bronson Laboratories
5 ingredients · Botanical
On Market
St. John's Wort 300 mg
Nature's Bounty
6 ingredients · Botanical
On Market
St. John's Wort 300 mg
Nature's Way
7 ingredients · Botanical
On Market
St. John's Wort 6,000 mg
NusaPure
6 ingredients · Botanical
On Market
St. John's Wort 700 mg
Bronson
6 ingredients · Botanical
On Market
St. John's Wort 900
Terry Naturally
13 ingredients · Botanical
On Market
St. John's Wort 900 mcg
Healths Harmony
6 ingredients · Botanical
On Market
St. John's Wort 900 mg
Solaray
7 ingredients · Botanical
On Market
St. John's Wort Extract
21st Century
8 ingredients · Botanical
On Market
St. John's Wort Extract 300 mg
Source Naturals
8 ingredients · Botanical with Nutrients
On Market
St. John's Wort Extract 300 mg
Source Naturals
8 ingredients · Botanical with Nutrients
On Market
St. John's Wort Extract 300 mg
Planetary Herbals
8 ingredients · Botanical with Nutrients
On Market
St. John's Wort Extract 300 mg
Planetary Herbals
8 ingredients · Botanical with Nutrients
On Market
St. John's Wort Extract 300 mg
Source Naturals
8 ingredients · Botanical with Nutrients
On Market
St. John's Wort With B Vitamins And Folic Acid
HBC Protocols
13 ingredients · Botanical with Nutrients
On Market
St. John's Wort-IMT
SP Standard Process
14 ingredients · Other Combinations
On Market
St. Johns-Dep
Nutri-West
15 ingredients · Botanical with Nutrients
On Market
Stabilize Hers
Arms Race Nutrition
12 ingredients · Other Combinations
On Market
Stabilize His
Arms Race Nutrition
10 ingredients · Other Combinations
On Market
Stabilized R-Lipoic Acid with BioEnhanced Na-RALA 200 mg
Doctor's Best
6 ingredients · Other Combinations
On Market
Stamina Boost V8
UNALTERED
10 ingredients · Botanical with Nutrients
On Market
StandardBar Berry
SP Standard Process
33 ingredients · Botanical with Nutrients
On Market
Standardized Garlic 500 mg
Ron Teeguarden Nutraceuticals
7 ingredients · Botanical
On Market
Standardized Ginkgo Biloba 120 mg plus Bacopa
Nature's Truth
7 ingredients · Botanical
On Market
Standardized Ginkgo Biloba 120 mg plus Bacopa
Nature's Truth
7 ingredients · Botanical
On Market
Standardized Odor-Less Fresh Garlic Extract
Bluebonnet
8 ingredients · Botanical
On Market
Standardized Odor-Less Fresh Garlic Extract
Bluebonnet
8 ingredients · Botanical
On Market
Standardized Olive Leaf 500 mg
Ron Teeguarden Nutraceuticals
8 ingredients · Botanical
On Market
Standardized Pycnogenol 50 mg
Ron Teeguarden Nutraceuticals
7 ingredients · Botanical
On Market
Standardized St. John's Wort 600 mg
Nature's Truth
5 ingredients · Botanical
On Market
Standardized St. John's Wort Extract Plus
Ron Teeguarden Nutraceuticals
10 ingredients · Botanical
On Market
Standardized Turmeric Curcumin Complex
Horbaach
11 ingredients · Botanical with Nutrients
On Market
Standardized Turmeric Extract 475 mg
Ron Teeguarden Nutraceuticals
6 ingredients · Botanical
On Market
Standardized-Full Potency Ginko Biloba 40 mg extract
herbscience
10 ingredients · Botanical
On Market
Standardized-Full Potency Ginseng 500 mg
herbscience
11 ingredients · Botanical
On Market
StarMulti Space Berry
KidStar
30 ingredients · Other Combinations
On Market
START! Multi-Vitamin + Digestion
Botanic Choice
31 ingredients · Botanical with Nutrients
On Market
Start! Multi-Vitamin + Energy
Botanic Choice
30 ingredients · Botanical with Nutrients
On Market
START! Multi-Vitamin + Joints
Botanic Choice
30 ingredients · Botanical with Nutrients
On Market
START! Multi-Vitamin + Weight
Botanic Choice
30 ingredients · Botanical with Nutrients
On Market
START! Multi-Vitamin for Men
Botanic Choice
29 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
START! Multi-Vitamin for Women
Botanic Choice
30 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Stasis In The Mansion of Blood Teapills
Plum Flower
17 ingredients · Botanical
On Market
Stealth Cookies & Cream
VPX
33 ingredients · Other Combinations
On Market
Stem Cell Support
Country Life Ageless Theory
13 ingredients · Other Combinations
On Market
Step 1 Ion Booster
pHion Balance
67 ingredients · Mineral
On Market

Nearby Ingredients in Non-nutrient/non-botanical

Other ingredients in the Non-nutrient/non-botanical category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Magnesium vs Citric Acid →

Nationwide ingredients with similar DSLD presence

Two peer sets for Magnesium: closest on total DSLD label listings (27,686 here) and closest on distinct brands that list it (2,255 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about Magnesium

What is the Recommended Dietary Allowance (RDA) for Magnesium?
400–420 mg for adult men, 310–320 mg for adult women. The RDA is the average daily intake sufficient to meet the nutrient requirements of nearly all (97–98%) healthy people. Source: NIH Office of Dietary Supplements.
Is there an upper limit for Magnesium?
350 mg from supplements only (no UL on dietary intake) for adults (Tolerable Upper Intake Level, UL, the maximum daily intake unlikely to cause adverse health effects in the general population).
Does Magnesium interact with medications?
Reduces absorption of bisphosphonates, quinolone and tetracycline antibiotics. May enhance effect of muscle relaxants. This is a partial list, always discuss supplement use with a pharmacist or prescribing provider.
What about Magnesium during pregnancy or breastfeeding?
RDA during pregnancy is 350–360 mg; lactation 310–320 mg.
How many supplement products contain Magnesium?
27,686 supplement product labels in the NIH DSLD currently lists Magnesium as an ingredient. By label frequency it ranks #3 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) · Dosing reference: NIH ODS Magnesium Health Professional Fact Sheet. Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.