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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

Selenium Extra Strength
BRI Nutrition
5 ingredients · Mineral
On Market
Selenium Glycinate
Bluebonnet
5 ingredients · Mineral
On Market
Selenium Glycinate
Bluebonnet
5 ingredients · Mineral
On Market
Selenium Synergy
Jarrow Formulas
11 ingredients · Other Combinations
On Market
Seleno-Iodide
Ortho Molecular Products
6 ingredients · Mineral
On Market
Seleno-Iodide
HoltraCeuticals
6 ingredients · Botanical with Nutrients
On Market
SelenoExcell Selenium 200 mcg
Natural Factors
4 ingredients · Mineral
On Market
SelenoExcell Selenium 200 mcg
Swanson
4 ingredients · Mineral
On Market
Senior Men's Pack
Douglas Laboratories
75 ingredients · Other Combinations
On Market
Senior Symmetry
Vitanica
36 ingredients · Other Combinations
On Market
Senior Women's Pack
Douglas Laboratories
69 ingredients · Other Combinations
On Market
Seniority Multivitamin
Country Life
49 ingredients · Other Combinations
On Market
Senna Leaf 500 mg
Swanson
5 ingredients · Botanical
On Market
Senna, Cascara & Psyllium Complex
Swanson
6 ingredients · Botanical
On Market
Sense For Weight Warriors
Sense
44 ingredients · Botanical with Nutrients
On Market
Senstra for Women
NewtonEverett
13 ingredients · Botanical with Nutrients
On Market
Sentry Adults
21st Century
42 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Sentry Adults
21st Century
43 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Sentry Senior Men's 50+
21st Century
44 ingredients · Other Combinations
On Market
SeraMense Plus Probiotics
Greens First Female
23 ingredients · Other Combinations
On Market
Serene Goddess
Warp Wellness
33 ingredients · Other Combinations
On Market
Serene Saffron
Xtendlife
10 ingredients · Other Combinations
On Market
Serene Science 5-HTP 100 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Science 5-HTP 200 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Science 5-HTP 200 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Science 5-HTP 200 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Science 5-HTP 50 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Science 5-HTP 50 mg
Source Naturals
5 ingredients · Amino acid/Protein
On Market
Serene Spirit Teapills
Plum Flower
12 ingredients · Other Combinations
On Market
Serenita Night-Time
Efficient
19 ingredients · Other Combinations
On Market
Serious Mass Banana
Optimum Nutrition
74 ingredients · Other Combinations
On Market
Serious Mass Banana
ON Optimum Nutrition
72 ingredients · Other Combinations
On Market
Serotonin Brain Food
NS Natural Stacks
9 ingredients · Botanical with Nutrients
On Market
Serotonin Brain Food
NS Natural Stacks
8 ingredients · Botanical with Nutrients
On Market
Serotonin Brain Food
NS Natural Stacks
8 ingredients · Botanical with Nutrients
On Market
Serotonin Brain Food
NS Natural Stacks
8 ingredients · Botanical with Nutrients
On Market
Serotonin Mood Support
BrainMD
10 ingredients · Botanical with Nutrients
On Market
SerotoninHelp
Herbs SRA
6 ingredients · Botanical with Nutrients
On Market
SeroVital Capsules
SeroVital
13 ingredients · Other Combinations
On Market
Serrapeptase 120,000 IU
AN Amazing Nutrition Amazing Formulas
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase 120,000 IU
AN Amazing Nutrition Amazing Formulas
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase 20,000 SPU
BIOVEA
6 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase 240,000 SPU
Double Wood Supplements
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase 40,000 IU
AN Amazing Nutrition Amazing Formulas
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase 40,000 IU
AN Amazing Nutrition Amazing Formulas
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Serrapeptase Pro
Enzyme Science
6 ingredients · Other Combinations
On Market
Seven Treasures for Hair Teapills
Plum Flower
13 ingredients · Botanical
On Market
Sexual Vitality Booster
Nugenix
43 ingredients · Other Combinations
On Market
Shake Booster Kids
Herbalife Nutrition
9 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Shake Booster Kids
Herbalife Nutrition
13 ingredients · Other Combinations
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.