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Calcium Citrate

product on market Tablet or Pill NOW Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Calcium and vitamin D2 are supported by strong evidence for maintaining bone density and skeletal health. Magnesium, zinc, and copper provide essential mineral support for metabolic and immune functions. Research for these combined nutrients is well-established, though overall evidence coverage for this specific formulation is limited.

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

Label

Product Label

Label for Calcium Citrate
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
50
Servings
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

10 mcg (50% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)
Calcium
600 mg (46% DV)
300 mg (71% DV)
Within RDA (0.7× RDA) 316 studies (A:8, B:159)
15 mg (136% DV)
1.4× RDA — within safe limits 263 studies (A:6, B:134)
1 mg (111% DV)
1.1× RDA — within safe limits 37 studies (A:0, B:11)
5 mg (217% DV)
2.2× RDA — within safe limits 9 studies — no high-quality reviews

Other Ingredients

Hydroxypropyl Cellulose Vegetarian Coating Croscarmellose Sodium Silicon Dioxide Magnesium Stearate Stearic Acid
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 2 tablets daily, preferably in divided doses, with food.

Warnings & Precautions

Caution: For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

Calcium citrate is a readily digested and absorbed form of calcium, a mineral that is necessary for the maintenance of bone health. Vitamin D, magnesium, zinc, copper, and manganese have been included for their essential roles in bone metabolism.

Natural color variation may occur in this product.

Supports bone health

Bone metabolism formula with mineral & vitamin D-2 Highly bioavailable calcium

Non-GMO

Vegetarian/vegan

Triangle K

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Additional Information

Store in a cool, dry place after opening.

Triangle K

Minerals Family owned since 1968.

GMP Quality Assured

Metadata

Product Details

UPC / SKU7 33739 01230 2
DSLD Entry Date2019-11-21
Product TypeOther Combinations
FormTablet or Pill
BrandNOW
DSLD ID210410
Data Updated2026-04-11
Research

Research Evidence

511
Research Sources
57
Avg Quality
266
Meta Analysis
95
Systematic Review
76
Rct
49
Clinical Trial
12
Guideline
4
Regulatory Source
2
Cochrane Review
2
Other
2
Narrative Review
1
Openfda Safety
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A First-line drugs for hypertension
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Beta-blockers for hypertension
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
View all evidence for Calcium →
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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.