Mineral

Calcium (for Relaxation)

Also known as: Calcium citrate, Calcium carbonate

Evidence

Essential for muscle contraction AND relaxation. Works with magnesium.

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Daily target & upper limit

1300 mg / day · UL 2500 mg

Calcium (for Relaxation) has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:

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Primary uses

Muscle function
Nerve transmission
Bone health

How it works

Required for muscle contraction/relaxation cycle
Nerve signaling
Must balance with magnesium

Dosage

Typical range: 500-1000mg daily if diet insufficient
Timing: Divided doses
With food: Citrate: either; Carbonate: with food
Duration: Long-term if needed
Special populations: Dairy-free, bone health

Forms

Calcium citrate
Calcium carbonate

Safety

Common side effects

Constipation
Bloating

Contraindications

Hypercalcemia
Kidney stones

Products containing Calcium (for Relaxation)

Top-scoring supplements in our catalog that list Calcium (for Relaxation) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Thorne

Protein Isolate - Chocolate

Transparent Labs

Grass-Fed Whey Protein Isolate

Thorne

Whey Protein Isolate - Vanilla

Nutricost

Calcium + Vitamin D3 Tablets

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Evidence notes

Essential mineral

Grade A: Multiple well-designed human trials support the main claims.

Related in Mineral

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.