Solaray Magnesium Citrate 400 mg
Magnesium Citrate · 90 vegetarian capsules
Elemental magnesium 400 mg per label serving.
- Amount
- Elemental magnesium 400 mg
- Format
- Capsules
- Review basis
- Label-based analysis
Check medicines and kidney-health concerns before use. Review the safety context.
Good fit
Adults seeking an inexpensive capsule option who have confirmed that its magnesium amount and blended formula suit their needs.
Consider another option
You need citrate alone, want a lower-dose full serving, or have kidney impairment without professional guidance.
The product, at a glance
Amounts for the reviewed label serving.
- Reviewed variant
- Magnesium Citrate · 90 vegetarian capsules
- Label serving
- 3 capsules
- Servings per reviewed pack
- 30
- Ingredients per label serving
- Elemental magnesium 400 mg
- Ingredient list
- Magnesium (from Magnesium Citrate), Vegetable Cellulose Capsule, Cellulose, Watercress Leaf, Dandelion Root, Alfalfa Leaf and Parsley Leaf.
- Storage
- Store in a cool, dry place
Label sources & rating context
~ means approximate; — means no published value in this record. Customer ratings are the named publisher’s snapshot and may include multiple sizes or earlier formulas. The Supplement Explained Score is our source-reviewed editorial assessment out of 25, separate from customer stars. Compare the five criteria and the same intended use; the total is not a clinical ranking. Prices are dated USD offer snapshots; cost uses the reviewed pack and label serving.
- Label clarity: 5/5
- Evidence transfer: 4/5
- Safety fit: 3/5
- Quality proof: 2/5
- Value fit: 3/5
On this pageTable of Contents
- 1Label facts at a glance
- 2Supplement Explained Score
- 3What the formula actually contains
- 4Serving size is not the same as personal need
- 5Value: about 40 cents per full serving
- 6Safety: the 400 mg serving deserves attention
- 7What the evidence and quality claims can establish
- 8Alternatives for different buying situations
- 9Frequently asked questions
- 10References and product sources
Our editorial assessment
Supplement Explained Score
17/25
Solaray Magnesium Citrate 400 mg · Magnesium Citrate · 90 vegetarian capsules
Five equally weighted criteria, with a product-specific reason for every point. This is a buying-decision assessment, separate from customer stars and personal medical suitability.
- Label clarity 5/5
- Reviewed Magnesium Citrate · 90 vegetarian capsules: 3 capsules; 30 label servings. Elemental magnesium 400 mg.
- Evidence transfer 4/5
- Magnesium citrate can add needed elemental magnesium; sleep or superior clinical outcomes are not established for this bottle.
- Safety fit 3/5
- The 400 mg serving exceeds the adult supplemental magnesium UL; GI effects, kidney impairment and medicine spacing matter.
- Quality proof 2/5
- Solaray manufacturing/testing descriptions do not establish a verified independent finished-capsule result.
- Value fit 3/5
- The amount is clear, but a full serving may exceed an appropriate supplemental gap and cause avoidable GI burden.
Review basis: Published labels, manufacturer/retailer information, clinical sources and exact-product quality records where available. We did not buy, personally use or laboratory-test this product for this assessment.
Reviewed · Method v2.0 · How we assign points
Sources behind this score
Product labels and independent directory records identify a formula or testing scope. Clinical references concern ingredients or studied regimens unless the explanation explicitly matches the finished formula.
What the formula actually contains
The front-label name does not tell the whole formula story. Three VegCaps provide 400 mg of elemental magnesium from magnesium citrate and Aquamin marine magnesium from seawater. That is the magnesium amount, not the weight of the citrate compound. Solaray does not disclose the proportion supplied by each source, so you cannot determine how much comes specifically from citrate. Solaray
The capsules also contain vegetable cellulose, cellulose, magnesium stearate, arabic gum, watercress leaf, dandelion root, alfalfa leaf and parsley leaf. The label provides no basis for assigning those plant ingredients a separate health benefit. They are worth checking if you prefer a simpler ingredient list.
For shoppers comparing magnesium forms, our magnesium citrate versus oxide comparison offers a useful starting point. Just keep this product’s blended composition in mind rather than treating it as a citrate-only example.
Serving size is not the same as personal need
Solaray’s directions are three capsules daily, preferably with a meal. That is the manufacturer’s full label serving, not a finding that every adult needs 400 mg of supplemental magnesium. The listed 95% Daily Value is also a labeling reference, not a personalized recommendation. Solaray
Dividing 400 mg by three gives approximately 133 mg per capsule. That calculation helps explain the capsule count; it is not a dosing recommendation or a separately verified per-capsule measurement. A 90-capsule bottle supplies 30 full label servings.
Before choosing the full serving, account for magnesium in other supplements and medicines, not just this bottle. Whether supplementation is useful; and at what amount; depends on individual circumstances. A lower capsule count should not automatically be treated as the right answer either; ask a clinician or pharmacist when your intake or medical history makes the choice uncertain.
Value: about 40 cents per full serving
Prices checked September 24, 2026; these are not live prices. The 90-capsule bottle was $11.99 for 30 full servings. The arithmetic is $11.99 ÷ 30 = $0.3997, or approximately $0.40 per three-capsule serving, excluding shipping and tax. Solaray
No matched fresh USD serving-cost benchmark was available for the score review. The reviewed Magnesium Citrate · 90 vegetarian capsules supplies 30 label servings of Elemental magnesium 400 mg, using 3 capsules per serving. The amount is clear, but a full serving may exceed an appropriate supplemental gap and cause avoidable GI burden.
The larger bottle has the better unit price, but the smaller bottle requires less spending upfront if you have not established that the formula suits you. These figures use the full label serving consistently. They do not imply that taking three capsules is necessary simply to obtain the advertised value.
Check the selected bottle size and current total at Solaray before ordering.
Check price at HerbsProHerbsPro: $11.99 for Magnesium Citrate, 400 mg, 90 Caps, checked October 5, 2026. Price and stock can change; confirm the current bottle label.
We may earn a commission from this link.
Safety: the 400 mg serving deserves attention
The adult tolerable upper intake level for magnesium from supplements and medicines is 350 mg daily; magnesium naturally present in food is excluded. This product’s full serving is 50 mg above that level. That does not mean the serving is automatically toxic, but it should not be presented as universally safe. Excess supplemental magnesium commonly causes diarrhea, nausea and abdominal cramping. NIH ODS
Digestive tolerance matters even when a supplement is inexpensive. If loose stools develop, do not assume they demonstrate a desirable effect or that you should simply continue. Our guide to magnesium and diarrhea explains this concern in more detail.
Kidney impairment increases the risk of magnesium toxicity. Seek professional advice before use if you have reduced kidney function. Magnesium can also interfere with certain antibiotics and oral bisphosphonates. Ask a pharmacist for spacing instructions specific to your medicine rather than applying one blanket interval. NIH ODS
What the evidence and quality claims can establish
No product-specific efficacy trial was reviewed for Solaray Magnesium Citrate 400 mg. General magnesium research does not establish that this particular blend improves sleep or treats insomnia. The NIH magnesium fact sheet provides nutrient-level information; it is not a clinical evaluation of this bottle. Buy it as a source of magnesium, not as a proven sleep treatment. NIH ODS
Manufacturer facility or good manufacturing practice (GMP) statements do not establish independent finished-product or batch certification. No independent batch test was reviewed. The label identifies the declared magnesium amount and ingredients, but that is not the same as an independent analysis confirming the contents of a particular bottle. This limits what can be concluded about verification; it does not by itself establish that the product is poor quality.
This is a review of published information, not first-hand use or a laboratory test of this product.
Alternatives for different buying situations
- If you want citrate alone: choose a product whose label identifies citrate as its sole magnesium source. Solaray’s undisclosed citrate-to-Aquamin ratio will not meet that preference.
- If three capsules feel impractical: consider a powder or liquid magnesium supplement with a clearly stated elemental amount per measured serving. Compare the actual serving instructions rather than assuming another format provides less magnesium.
- If you are considering glycinate: read our magnesium glycinate versus citrate comparison. A different form is an alternative to evaluate, not a guarantee of better tolerance or sleep.
- If you want a lower-dose full serving: look for a label that supplies less elemental magnesium per serving. That can simplify comparison, though the appropriate amount still depends on your needs.
This capsule supplement is not liquid magnesium citrate laxative and is not a bowel-preparation product. Those are different purchasing situations, not interchangeable uses. Solaray
Frequently asked questions
Does one capsule contain 400 mg of magnesium?
No. The 400 mg amount applies to three capsules. Dividing the label amount gives approximately 133 mg per capsule, an arithmetic estimate rather than a dosing recommendation.
Are these vegetarian capsules?
Solaray identifies them as VegCaps and lists vegetable cellulose for the capsule. That label description should not be expanded into an unverified vegan or independent certification claim.
Should I take it with food?
The manufacturer’s directions say to take three capsules daily, preferably with a meal. Following the meal instruction does not change the fact that the full serving exceeds the adult supplemental upper limit.
Can I take it alongside a multivitamin?
Check whether the multivitamin contains magnesium and add that amount to other supplemental or medicinal sources. This product already supplies 400 mg at its full serving. Ask a pharmacist or clinician to help assess the combined intake.
References and product sources
- Solaray: current product label, directions and listed price
- NIH Office of Dietary Supplements: Magnesium
Label, price and source information checked September 24, 2026. Product formulas and prices can change. This article is informational, not personalized medical advice.
Editorial information
Continue your decision
If this product is not an obvious fit, use one of these routes instead of leaving the decision unfinished.
- Magnesium guide Check forms, dose logic, tolerance issues, and who should be careful.
- All product analyses Browse the full product analysis library for alternatives and category comparisons.
- Supplement Explained Score See how label clarity, evidence transfer, safety fit, quality proof, and value fit are scored.
- Interaction checklist Check common combination risks before stacking supplements or medications.