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Dyna-Cal

product on market Tablet or Pill Douglas Laboratories Safety: 96/100
96/100

This product looks safe

  • Magnesium: 420mg is 1.2× the Tolerable Upper Intake Level (350mg)
  • 44% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Calcium and vitamin D3 have strong evidence for supporting bone density and mineral absorption. Magnesium and vitamins C and E provide antioxidant support and contribute to neuromuscular function. Research generally supports the efficacy of these nutrients for skeletal and cellular health.

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

Alerts

Safety Alerts

Magnesium: 420mg is 1.2× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for Dyna-Cal
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Tablet(s)
Serving Size
62.5
Servings
Other Combinations
Product Type
44%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
80 mg (89% DV)
25 mcg (125% DV)
1.7× RDA — within safe limits 608 studies (A:16, B:251)
13.4 mg (89% DV)
Within RDA (0.9× RDA) 179 studies (A:3, B:90)
Calcium
1500 mg (115% DV)
420 mg (100% DV)
Exceeds UL by 1.2× (UL: 350 mg) 316 studies (A:8, B:159)
10 mg (435% DV)
4.3× RDA — above typical dose (UL: 11 mg) 9 studies — no high-quality reviews
400 mcg
Market median: 3.0mg (58 products) 3 studies — no high-quality reviews
80 mg
Market median: 496.0mg (192 products) 20 studies — no high-quality reviews
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)

Other Ingredients

Microcrystalline Cellulose Coating Hydroxypropyl Cellulose Croscarmellose Sodium Stearic Acid Vegetable Stearate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: As a dietary supplement, adults take 4 tablets daily with meals or as directed by your health professional.

Warnings & Precautions

Warning: If you are pregnant, or nursing, or if you are taking prescription medication, consult your health professional before using this product.

Discontinue immediately if a burning sensation occurs. Not recommended for people with ulcers.

If you have any health condition, particularly liver disease, or are taking any medication, consult your health professional before use.

Do not exceed the suggested daily dose unless recommended and monitored by your health professional.

Keep out of the reach of children.

Use only if safety seal is intact.

Formulation Notes

Gluten-free, Non-GMO

Calcium/Magnesium Complex

Bone health

Additional Information

Store in a cool, dry place.

Scan to learn about our manufacturing excellence Contents may not fill bottle in order to accommodate required labeling. Please rely on stated quantity.

Metadata

Product Details

UPC / SKU3 10539 04039 3
DSLD Entry Date2020-08-23
Product TypeOther Combinations
FormTablet or Pill
DSLD ID232615
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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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.