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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

Mega Multi Mineral
Solaray
25 ingredients · Other Combinations
On Market
Mega Multi Mineral
Solaray
25 ingredients · Other Combinations
On Market
Mega Multi Mineral Iron-Free
Solaray
28 ingredients · Other Combinations
On Market
Mega Multi Softcaps
Bronson
45 ingredients · Other Combinations
On Market
Mega Multi Softcaps
Bronson
45 ingredients · Other Combinations
On Market
Mega Multi Vitamin
Indiana Botanic Gardens
45 ingredients · Other Combinations
On Market
Mega Smoothie Booster Unflavored
Probiogen
25 ingredients · Other Combinations
On Market
Mega Strength Glucosamine 1,500 mg
Nature's Truth
8 ingredients · Non-Nutrient/Non-Botanical
On Market
Mega Strength Glucosamine Sulfate 1,000 mg
AN Amazing Nutrition Amazing Formulas
4 ingredients · Non-Nutrient/Non-Botanical
On Market
Mega Strength L-Carnitine 1,000 mg
Nature's Truth
6 ingredients · Non-Nutrient/Non-Botanical
On Market
Mega Tribulus Extract
Swanson
6 ingredients · Botanical
On Market
Mega Vita Gel
Radiance
47 ingredients · Other Combinations
On Market
Mega Vita Gel Iron Free
Vitamin World
36 ingredients · Other Combinations
On Market
Mega Vita Min For Seniors
Vitamin World
41 ingredients · Other Combinations
On Market
Mega Vita Min For Women
Radiance
60 ingredients · Other Combinations
On Market
Mega Vita Woman 50+ High Potency
Vitamin World
49 ingredients · Other Combinations
On Market
Mega Vita-Gel
Vitamin World
46 ingredients · Other Combinations
On Market
Mega Vita-Min
Radiance
55 ingredients · Other Combinations
On Market
Mega Vita-Min Adult Chewable Pineapple Flavored
Vitamin World
35 ingredients · Other Combinations
On Market
Mega Vitamin B-Stress
Solaray
21 ingredients · Vitamin
On Market
Mega Vitamin B-Stress Timed Release
Solaray
20 ingredients · Other Combinations
On Market
Mega Zinc 100 mg
NaturesPlus
7 ingredients · Mineral
On Market
Mega-Mag 400 mg
Trace Minerals
7 ingredients · Mineral
On Market
Mega-Potassium
Trace Minerals Research
6 ingredients · Mineral
On Market
Mega-Size BCAA 1000 Caps
Optimum Nutrition
6 ingredients · Amino acid/Protein
On Market
Mega-Stress Sustained Release
NaturesPlus
31 ingredients · Other Combinations
On Market
Mega-Stress Sustained Release
NaturesPlus
31 ingredients · Other Combinations
On Market
Mega-Zyme Pancreatic & Systemic Enzymes
Nature's Way
17 ingredients · Non-Nutrient/Non-Botanical
On Market
Mega-Zyme Pancreatic & Systemic Enzymes
Nature's Way
17 ingredients · Non-Nutrient/Non-Botanical
On Market
MegaFolinic 800 mcg
Source Naturals
4 ingredients · Vitamin
On Market
Megawatt Pink Lemonade
1st Phorm
32 ingredients · Other Combinations
On Market
MegMan Performance Booster
Junp
9 ingredients · Botanical with Nutrients
On Market
Melatonin + 5-HTP Advanced Time Release
Natrol
14 ingredients · Other Combinations
On Market
Melatonin + 5-HTP Time Release
Natrol
14 ingredients · Other Combinations
On Market
Melatonin 1 mg
Bronson
5 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
NOW
9 ingredients · Other Combinations
On Market
Melatonin 1 mg
The Vitamin Shoppe
9 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
The Vitamin Shoppe
9 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
Windmill Natural Vitamins
9 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
Nature's Truth
7 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
Swanson
4 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
Health Star
9 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
Health Star
9 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg
NOW
12 ingredients · Other Combinations
On Market
Melatonin 1 mg
Natrol
8 ingredients · Other Combinations
On Market
Melatonin 1 mg
Natrol
8 ingredients · Other Combinations
On Market
Melatonin 1 mg
Nature's Truth
7 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg Fast Dissolve Strawberry
Natrol
16 ingredients · Non-Nutrient/Non-Botanical
On Market
Melatonin 1 mg Fast Dissolve Strawberry
Natrol Kids
14 ingredients · Other Combinations
On Market
Melatonin 1 mg Fast Dissolve Strawberry
Natrol Kids
14 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.