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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

Ultra Preventive IX With Vitamin K
Douglas Laboratories
65 ingredients · Other Combinations
On Market
Ultra Preventive N.A.
Douglas Laboratories
27 ingredients · Other Combinations
On Market
Ultra Preventive N.A.
Douglas Laboratories
27 ingredients · Other Combinations
On Market
Ultra Preventive V Plus Chel
Douglas Laboratories
57 ingredients · Other Combinations
On Market
Ultra Preventive World Formula
Douglas Laboratories
56 ingredients · Other Combinations
On Market
Ultra Preventive X
Douglas Laboratories
60 ingredients · Other Combinations
On Market
Ultra Preventive X
Douglas Laboratories
60 ingredients · Other Combinations
On Market
Ultra Preventive X
Douglas Laboratories
60 ingredients · Other Combinations
On Market
Ultra Preventive-Beta With Copper & Iron With Natural Mixed Carotenoids
Douglas Laboratories
37 ingredients · Other Combinations
On Market
Ultra Preventive-Beta With Copper With Natural Mixed Carotenoids
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Preventive-Beta With Copper With Natural Mixed Carotenoids
Douglas Laboratories
36 ingredients · Other Combinations
On Market
Ultra Prime Keto
Justified Laboratories
20 ingredients · Botanical with Nutrients
On Market
Ultra Pro 4 in 1
Schiff Move Free Joint Health
17 ingredients · Other Combinations
On Market
Ultra Probiotic
Foster Regal
15 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Probiotic 71 mg Prebiotics 100 mg
Rite Aid
21 ingredients · Other Combinations
On Market
Ultra Probiotic Complex
Puritan's Pride
8 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Probiotic Rescue & Refresh Kit 150 Billion CFUs
GNC Probiotics
11 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Prostate 30
eXplicit Supplements
35 ingredients · Other Combinations
On Market
Ultra Protein Plus Natural Chocolate Almond Flavor
Douglas Laboratories
61 ingredients · Other Combinations
On Market
Ultra Pump Fuel Caffeine Free Strawberry Limeade
PMD
49 ingredients · Other Combinations
On Market
Ultra Pump Fuel Insanity v.5 Cherry Bombsicle
PMD
56 ingredients · Other Combinations
On Market
Ultra Pump Fuel v.5 Insanity Artic Blue Blast
PMD
57 ingredients · Other Combinations
On Market
Ultra Pump Fuel v.5 Insanity Strawberry Slam
PMD
57 ingredients · Other Combinations
On Market
Ultra Pump Fuel v.5 Insanity Tropical Orange Mango
PMD
57 ingredients · Other Combinations
On Market
Ultra Quercetin 585 mg
Nature's Truth
4 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Raspberry Ketones 250 mg
Wonder Laboratories
8 ingredients · Other Combinations
On Market
Ultra Source of Life Liquid Natural Mango Pineapple Flavor
NaturesPlus
124 ingredients · Other Combinations
On Market
Ultra Strength Antacid Tablets 1000 Assorted Berries
Walgreens
14 ingredients · Mineral
On Market
Ultra Strength Antacid Tablets Peppermint Flavor
Kroger
10 ingredients · Mineral
On Market
Ultra Strength Calcium Antacid Tablets
Simply Right
13 ingredients · Mineral
On Market
Ultra Strength Prenatal Folic Acid + DHA
OLLY
34 ingredients · Botanical with Nutrients
On Market
Ultra Sugar Control
NaturesPlus
16 ingredients · Botanical with Nutrients
On Market
Ultra Tart Cherry Extract 1,200 mg
Nature's Truth
6 ingredients · Botanical
On Market
Ultra Test Testosterone Booster
NutriSuppz
12 ingredients · Botanical with Nutrients
On Market
Ultra Testosterone
GNC Mega Men
26 ingredients · Other Combinations
On Market
Ultra Testosterone
GNC Mega Men
26 ingredients · Other Combinations
On Market
Ultra Triple Action Joint Health
Member's Mark
15 ingredients · Other Combinations
On Market
Ultra Turmeric Plus
Nora Ross
7 ingredients · Botanical
On Market
Ultra Veggie Enzymes
Vitabase
21 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Vita Man
Puritan's Pride
67 ingredients · Other Combinations
On Market
Ultra Vita Man
Puritan's Pride
67 ingredients · Other Combinations
On Market
Ultra Vita Man 50+
Vitamin World
67 ingredients · Other Combinations
On Market
Ultra Vita-Min Iron Free
Puritan's Pride
52 ingredients · Other Combinations
On Market
Ultra Vitamin C 1000 mg
Adaptogen Research
7 ingredients · Vitamin
On Market
Ultra Vite 75
Douglas Laboratories
34 ingredients · Other Combinations
On Market
Ultra Vite 75 II Low Allergenicity
Douglas Laboratories
34 ingredients · Other Combinations
On Market
Ultra Woman 50 Plus
Vitamin World
29 ingredients · Other Combinations
On Market
Ultra Woman 50 Plus
Puritan's Pride
61 ingredients · Other Combinations
On Market
Ultra Woman 50 Plus
Puritan's Pride
61 ingredients · Other Combinations
On Market
Ultra Woman Iron Free Multi
Vitamin World
54 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.