Brand · NIH DSLD snapshot 2026-08-10

Spring Valley magnesium supplements: 1 product, 100 mg of magnesium per serving

1 Spring Valley magnesium product in 1 form, led by citrate (1); median 100 mg of magnesium per serving. Inside: each product's mg and price.

Spring Valley files one on-market magnesium label in NIH DSLD, Spring Valley Rapid-Release Magnesium Citrate 100 mg, declaring 100 mg of elemental magnesium per serving as citrate; its capsule verdict: fits size 0 or 00, against 8 of 137 registry capsule labels above size 000. Snapshot 2026-08-10.

computed from filed labels
On-market labels1NIH DSLD snapshot 2026-08-10
Salts filed1most often citrate
Exceeds size 0000 of 1registry: 8 of 137
Matched US price0 of 10 ranked · 2026-11-02
stacked bar · spring valley · capsule verdicts 0 of 1 exceed size 000 vs registry 8 of 137 · snapshot 2026-08-10
Capsule verdicts for Spring Valley against all audited capsule labels.
Chart data
Chart labels and values for the main chart
Displayed chart text
Spring Valley
fits 1 of 1
needs 000 0 of 1
exceeds 0 of 1
all audited
fits 82 of 137
needs 000 47 of 137
exceeds 8 of 137

Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-11-02 · chemistry 2026-10-17

Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.

Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range.

Estimated salt mass versus assumed capsule capacity

0 of 1 audited capsule label are above the assumed size 000 capacity at powder density 0.8 g/mL, against 8 of 137 across the registry. 1 fit size 0 or 00 and 0 need size 000, at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range and the most favourable hydration.

computed with assumption
Capsule verdicts, Spring Valley against the registry
VerdictSpring ValleyAll audited capsule labels
Fits size 0 or 001 of 182 of 137
Needs size 0000 of 147 of 137
Exceeds size 0000 of 18 of 137

Registry label audit

Source · NIH DSLD labels; mass balance · recognized salt only; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method

Which magnesium salts does Spring Valley use, and how much compound does each need?

Spring Valley files one salt, citrate across 1 label; for 100 mg of magnesium the lightest of them needs 619 mg of compound against 885 mg for the heaviest.

computed
Salts filed by Spring Valley
SaltLabelsElemental fractionCompound per 100 mg Mg
citrate111.3–16.2%619–885 mg

Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method

How do Spring Valley's prices compare within each salt?

No Spring Valley label has a matched US retail price in our price collection as of 2026-11-02, against 1 label on file.

computed
Spring Valley prices per 100 mg against the median of the same salt
LabelSaltPer 100 mgSame-salt medianObserved
No matched price as of 2026-11-02

Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method

Does the FDA hold recall or adverse event records naming Spring Valley?

The FDA enforcement data queried 2026-10-19 holds 3 recall records naming Spring Valley, 0 of them about a magnesium product. CAERS holds adverse event reports naming the brand, as it does for 143 of 273 brands here; openFDA states that “there is no certainty that the reported event (adverse event) was actually due to the product” and that reports “cannot be used to estimate the incidence of these events.”

measured
FDA recall records naming Spring Valley
RecallDateReasonStatus
F-0903-20202020-04-01Firm was notified by supplier that Organic Ground Flaxseed powder was under recall by manufacturer due to unapproved herbicide - HaloxyfopTerminated
F-1292-20232023-08-02Product contains undeclared milk.Terminated
F-0664-20242024-01-10Potential mold contaminationTerminated

FDA record register and matching method

Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method

What else goes into Spring Valley's labels, and what do they declare?

1 of 1 Spring Valley labels list magnesium stearate, 1 use a gelatin shell and 0 a cellulose shell; 4 distinct filed declarations appear across them. Listed ingredients are filed names, not quantities.

measured
Most frequent filed ingredients and declarations for Spring Valley
Filed entryLabels
croscarmellose1 of 1
gelatin1 of 1
magnesium stearate1 of 1
Adult (18 - 50 Years)1 of 1
Gluten Free1 of 1
Dairy Free1 of 1
Sugar Free1 of 1

Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method

Which Spring Valley labels are on file, and what does each declare?

Spring Valley has 1 on-market label in the NIH DSLD snapshot 2026-08-10, with a median declared amount of 100 mg of elemental magnesium per serving; each row opens the label's own arithmetic.

measured
Spring Valley labels on file
LabelDeclared per servingSaltCapsule verdict
Spring Valley Rapid-Release Magnesium Citrate 100 mg100 mgcitrateneeds 00

Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method