Item # Quantity Type
076 120 Tablet

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Calcium 500mg with Vitamin D3 - 120

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Calcium 500mg with Vitamin D3 Compare to Os-cal 500 + D3 and Save!

Calcium 500 mg with Vitamin D3 formula provides you with 500 mg of calcium carbonate plus 5 mcg of vitamin D per tablet. If you compare the Windmill Calcium 500 with Vitamin D formula to Os-cal 500+D3® formula, you will find out that the two formulas are almost identical; however, Windmill does not use artificial colors, flavors, or preservatives.

  • Supports Healthy Bones
  • Maximize Calcium Absorption

Windmill’s promotional pricing will also give you the savings you are looking for. 

For additional formula information, view the Supplement Facts panel. 

All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose cGMP (current Good Manufacturing Practice) are independently verified by qualified certification organizations.

Windmill is a trusted name that has been providing America with quality supplements for over 45 years.

OS-CAL 500 & D is a registered trademark of GlaxoSmithKline Consumer Health, L.P. Noon twp, PA

Gluten Free

Supplement Facts

Serving Size: 1 Tablet

Amount Per Serving % DV
Vitamin D (as cholecalciferol) 5 mcg 25%
Calcium (as calcium carbonate) 500 mg 38%

Other Ingredients: Microcrystalline cellulose, croscarmellose sodium, stearic acid, silica, magnesium stearate and coating (water, hypromellose, glycerine, talc, carnauba wax).


SUGGESTED USE: Take 1 tablet twice daily as a dietary supplement or as directed by a healthcare professional.