Is 630 mg of Magnesium safe?

No — this amount exceeds the Tolerable Upper Intake Level of 350 mg by 1.8×. The recommended daily intake is 420 mg.

Magnesium Citrate Powder Unflavored by Swanson

60/100

Review before taking

Magnesium: 630mg is 1.8× the Tolerable Upper Intake Level (350mg)
100% of ingredients have research evidence

C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Magnesium is supported by strong evidence for supporting muscle and nerve function. However, the low safety score suggests potential concerns regarding gastrointestinal tolerance or interactions with other medications. Users should monitor for adverse effects due to these safety considerations.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Magnesium: 630mg is 1.8× the Tolerable Upper Intake Level (350mg)

✨ AI-generated · Qwen 3.6 · grounded in 2 sources · methodology

This product received a low safety score because it contains 630mg of magnesium, which is nearly double the recommended daily upper limit of 350mg.

Label

Product Label

Open Full PDF View on NIH DSLD →

Details

Label Data

4.2 Gram(s)

Serving Size

Servings

Mineral

Product Type

100%

Evidence Coverage

Ingredients

Supplement Facts — Evidence Check

Magnesium

630 mg (150% DV)

Exceeds UL by 1.8× (UL: 350 mg) 316 studies (A:8, B:159)

Claims

Label Claims — Verification

Unverified Nutrient

Unverified All Other

Unverified Structure/Function

Info

Product Information

Directions for Use

Suggested use: As a dietary supplement, mix one scoop (4.2 g) in eight ounces of your favorite liquid. It is recommended to take with food. Scoop included.

Warnings & Precautions

Note: Product contains a desiccant packet to maintain freshness. Do not eat the desiccant packet.

Warning: For adults only. Keep out of reach of children.

Consult your healthcare provider before use if you are pregnant, nursing, taking prescription medications or have a medical condition.

This product must be dissolved into at least 8 oz. of cold water or clear liquid before consuming. Do not breathe powder and avoid direct contact with skin, eyes and clothing.

Do not use if seal is broken.

Formulation Notes

100% Pure Magnesium Citrate Powder 630 mg per serving

Muscle and bone health

Additional Information

Store in a cool, dry place.

1-800-437-4148 or visit our website at www.swanson.com

Metadata

Product Details

UPC / SKU0 87614 11754 6

DSLD Entry Date2024-10-24

Product TypeMineral

FormPowder

BrandSwanson

DSLD ID308439

Data Updated2026-04-11

Research

Research Evidence

Research Sources

Avg Quality

Rct

Meta Analysis

B Citrate salts for preventing and treating calcium containing kidney stones in adults

Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI

B Effect of potassium citrate on bone density, microarchitecture, and fracture risk in healthy older adults without osteoporosis: a randomized controlled trial

Rct The Journal of clinical endocrinology and metabolism 2013 PubMed DOI

B Regional Citrate Anticoagulation or Heparin Anticoagulation for Renal Replacement Therapy in Patients With Liver Failure: A Systematic Review and Meta-Analysis

Meta Analysis Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis 2023 PubMed DOI

B Effect of potassium citrate supplement on stone recurrence before or after lithotripsy: systematic review and meta-analysis

Meta Analysis Urolithiasis 2017 PubMed DOI

C Effect of Regional Citrate Anticoagulation vs Systemic Heparin Anticoagulation During Continuous Kidney Replacement Therapy on Dialysis Filter Life Span and Mortality Among Critically Ill Patients With Acute Kidney Injury: A Randomized Clinical Trial.

Rct JAMA PubMed DOI

C Systematic review and meta-analysis: sodium picosulfate/magnesium citrate vs. polyethylene glycol for colonoscopy preparation

Meta Analysis European journal of clinical pharmacology 2016 PubMed DOI

C Potassium citrate prevents increased urine calcium excretion and bone resorption induced by a high sodium chloride diet

Rct The Journal of clinical endocrinology and metabolism 2002 PubMed

C Magnesium citrate supplementation decreased blood pressure and HbA1c in normomagnesemic subjects with metabolic syndrome: a 12-week, placebo-controlled, double-blinded pilot trial

Rct Magnesium research 2021 PubMed DOI

C The efficacy of vitamin D combined with clomiphene citrate in ovulation induction in overweight women with polycystic ovary syndrome: a double blind, randomized clinical trial.

Rct Endocrine PubMed DOI

C Impact of Clomiphene Citrate on the Steroid Profile in Dysmetabolic Men with Low Testosterone Levels.

Rct Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme PubMed DOI

View all evidence for Magnesium Citrate →

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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.