Calcium Carbonate Powder, 12 oz
NOW Foods
NOW Calcium Carbonate powder, 12 oz (Amazon B004421K68). In stock, sold by Amazon.com, one-time price $9.79 on 9 Oct 2026. Label: 600 mg elemental calcium from 1,700 mg calcium carbonate per 1/2 teaspoon, about 200 servings. Other ingredients: none. 200 × 600 mg / $9.79 = 12,257.41 mg calcium per $1. The label does not name limestone or oyster shell.
Serving Size
1/2 level teaspoon (1.7 g)
Per Serving
600 mg calcium
What's on the Label
Calcium (elemental, from calcium carbonate)
600 mg
How It's Made
Primary Form
Calcium carbonate powder, 600 mg elemental calcium per 1/2 level teaspoon (about 200 servings). The label does not name limestone or oyster shell.
Source & Processing
Calcium carbonate powder, 600 mg elemental calcium per 1/2 level teaspoon (about 200 servings). The label does not name limestone or oyster shell.
Other Ingredients
None
What They Don't Tell You(Beyond the label)
How to Use
Typical Dose
600 mg calcium
Per 1/2 level teaspoon (1.7 g)
General Guidance
• When: Follow label directions or consult research for optimal timing
• Consistency: Regular daily use typically yields best results
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