AI overview
AI generated. Not medical advice.What it's for
Bone health; Calcium absorption support
Who it may fit
Adults with low dairy or calcium intake and people who spend limited time in sunlight.
Key actives per serving
- Calcium: 500 mg (38% DV)
- Vitamin D3 (Cholecalciferol): 15 mcg (600 IU) (75% DV)
How to take
Adults take 1 tablet with a meal, twice daily; taking with food and water may improve tolerance and vitamin D3 absorption.
Diet / Allergen fit
Gluten Free; Contains: Shellfish (oyster); No added yeast or artificial flavors.
Ingredients explained
Calcium
Calcium provides the mineral building blocks for bones and teeth and participates in muscle contraction and nerve signaling.
Caution: Take with food and water to reduce stomach upset; high intakes may interfere with absorption of iron and some medications if taken at the same time.
Vitamin D3 (Cholecalciferol)
Vitamin D3 supports intestinal absorption of calcium and phosphorus and helps regulate calcium balance in the body.
Caution: Take as directed to avoid excessive vitamin D intake, which may increase calcium levels; consider taking with a meal containing fat for better absorption.
How they work together
Vitamin D3 enhances intestinal calcium absorption, while calcium supplies the structural mineral needed for bones; together they support efficient calcium use and bone mineralization.
Safety and tips
Label Warning: Consult a healthcare provider before use if pregnant, nursing, taking medications, have a medical condition, or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur. Do not exceed the recommended dosage.
Who should be cautious: People with shellfish allergies should avoid this product due to oyster shell–derived calcium. Those taking thyroid medications or certain antibiotics may need to separate calcium dosing by at least 2 hours; discuss timing with a healthcare provider. If using anticoagulants sensitive to vitamin K, note this product does not contain vitamin K. If combining with medications, consult a healthcare provider first.
Storage: Store at room temperature.
What customers say
Noticeable energy and mood support
Several users mention feeling more energetic and in a better mood after starting the tablets.
Perceived bone support
Many reviewers say they feel it supports their bones, attributing this to the calcium and vitamin D3 combination.
May require additional supplements or doses
Some users say they add magnesium or take more than one tablet to meet their daily goals.
Product rankings:
iHerb Quality Promise
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Vitamin D3 and K2 may enhance calcium absorption and support bone health, making them a great pair for maintaining strong bones.
AI generated. Not medical advice.
Overview
- Compare vs. OS·CAL® Extra D3
- Gluten Free
- Calcium & Vitamin D3 Supplement
- Bone Health Support
- 500 mg Calcium
- 15 mcg (600 IU) Vitamin D3
- Guaranteed Quality Laboratory Tested
- Trusted Quality For Over 30 Years
Calcium is an important mineral for bone health. Vitamin D3 is added to assist with calcium absorption.
Specifications
- First available: 09/2013
-
Shipping weight:
0.16 kg
- Product code: CEN-27519
- UPC: 740985275191
- Package quantity: 90 count
- Dimensions: 5.3 x 5.3 x 10.2 cm , 0.16 kg
Suggested use
As a calcium supplement, adults take one (1) tablet with any meal, twice daily or as directed by a healthcare provider. Do not exceed recommended dosage.
Other ingredients
Maltodextrin, croscarmellose sodium, cellulose. Contains <2% of: Magnesium silicate, magnesium stearate, polyethylene glycol, polyvinyl alcohol, stearic acid, titanium dioxide.
Contains shellfish (oyster).
No added yeast or artificial flavors.
Warnings
Individual results may vary.
Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur.
Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.
Disclaimer
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: 1 Tablet | ||
| Amount Per Serving | %Daily Value | |
| Vitamin D3 (as Cholecalciferol) | 15 mcg (600 IU) | 75% |
| Calcium (from Oyster Shell) | 500 mg | 38% |