Calcium 500+D3 plus Extra D3

Suggested Use

Directions: As a calcium supplement; take one (1) tablet twice daily with any meal or as directed by your healthcare provider. Do not exceed recommended dosage.

• 

  21st Century Calcium 500 + D3 Caplets

  21st-century-vitamins4.8(1400)

  $5.49Lowest
• 

  21st Century Calcium 500 + D3 Tablets

  Target4.8(1100)

  $14.99
• 

  21st Century Calcium 500 + D3 400 Tablets

  iHerb4.8(1400)

  $10.99
• 

  21st Century Calcium Plus Extra D Caplets

  Walmart - Wisermerchant4.8(1400)

  $30.09
• 

  21st Century Calcium + D3 Softgels

  21st-century-vitamins4.8(657)

  $9.99
• 

  21st Century Calcium 500 + D3 90 Cplts

  Walmart - Pharma Frills4.0(8)

  $11.11
• 

  21st Century Calcium Supplement Tablets

  Target4.8(1800)

  $15.99
• 

  21st Century Calcium Plus D3 1000 mg Tablets

  21st-century-vitamins4.7(3700)

  $6.49

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• GNC

  4.7 (197)

  Vitamin & supplements store

  2 Pennsylvania Plaza Ste 29B, New York, NY 10121

  Directions(212) 239-1251

• The Vitamin Shoppe

  3.9 (84)

  Vitamin & supplements store

  32 Court St, Brooklyn, NY 11201

  Directions(718) 596-0466

• GNC

  4.4 (88)

  Vitamin & supplements store

  753 Broadway Spc 753, New York, NY 10003

  Directions(212) 380-5999

• Pure Essentials Supplements

  5.0 (1)

  Vitamin & supplements store

  121 Varick St, New York, NY 10013

  Directions(212) 758-3200

• GNC

  4.0 (224)

  Vitamin & supplements store

  134-136 Fulton St, New York, NY 10038

  Directions(212) 374-9473

• The Vitamin Shoppe

  4.3 (183)

  Vitamin & supplements store

  12 4th Ave, Brooklyn, NY 11217

  Directions(718) 858-8314

• The Vitamin Shoppe

  4.4 (98)

  Vitamin & supplements store

  257 8th Ave, New York, NY 10011

  Directions(212) 243-0086

• GNC

  3.6 (101)

  Vitamin & supplements store

  2 Broadway, New York, NY 10004

  Directions(212) 514-5770

• Minerals and vitamins in bone health: the potential value of dietary enhancement

  JP Bonjour, L Guéguen, C Palacios… - British journal of …, 2009 - cambridge.org

  … defined in France corresponds to P combined with a large intake of calcium phosphate with … ) vitamin D3 plus 600mg Ca. This study showed no effect of the extra 500mg phylloquinone (…

  2009206 citations

• Vitamin D in health and disease: current perspectives

  R Zhang, DP Naughton - Nutrition journal, 2010 - Springer

  … D3 is immediately converted to vitamin D. Excess UVB rays transform previtamin D3 into … that daily calcium (500 mg) and vitamin D (400 IU) supplementation was associated with an …

  2010577 citations

• Overview of the conference “Vitamin D and Health in the 21st Century: an Update”

  PM Brannon, EA Yetley, RL Bailey… - The American journal …, 2008 - academic.oup.com

  … form vitamin D3 (cholecalciferol), which the vitamin D binding … However, calcium and vitamin D supplementation during … over pathways convert excess vitamin D to inactive metabolites …

  2008251 citations

• Vitamin D and bone health; Potential mechanisms

  E Laird, M Ward, E McSorley, JJ Strain, J Wallace - Nutrients, 2010 - mdpi.com

  … Excess non-hydroxylated vitamin D is stored in the liver, adipose tissue and muscle [24]. … trial [115] supplementing with 500 IU D3 and 1000 mg calcium/d over the same intervention …

  2010508 citations

• Optimal vitamin D status: a critical analysis on the basis of evidence-based medicine

  …, C Mathieu, D Vanderschueren… - The Journal of …, 2013 - academic.oup.com

  … , a daily intake of 500–700 IU of vitamin D 3 is sufficient to … vitamin D excess and few against vitamin D deficiency (… to estimate active calcium absorption in otherwise healthy individuals …

  2013391 citations

• Vitamin D: evidence-based health benefits and recommendations for population guidelines

  WB Grant, SJ Wimalawansa, P Pludowski, RZ Cheng - Nutrients, 2025 - mdpi.com

  … extra-skeletal benefits and optimal thresholds for vitamin D. In … 1000 mg/day of calcium significantly reduced the risk of hip … a monthly maintenance dose of 50,000 IU of D3 until delivery; …

  2025162 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-10-23. DSLD Label ID: 207518. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.