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Calcium fortification & supplements

CALCIUM FORTIFICATION & SUPPLEMENTS Imerys calcium carbonates for calcium fortification of foods and dietary supplements

Imerys food-grade precipitated calcium carbonates (PCC) grades are excellent sources of calcium for food fortification and dietary supplements. 

Our I-Blūm PCC grades are added-value solutions for enhancing the calcium content of fortified foods and beverages such as:

  • Yogurt
  • Meal replacement bars and drinks
  • Bakery snacks
  • Dairy-based and plant-based beverages
  • Powdered beverage mixes


Our high-purity precipitated I-Blūm food additive grades are sustainably sourced from high-quality minerals from Imerys owned mines. They are processed at Imerys facilities according to Good Manufacturing Practices (GMP)

The I-Blūm range is available in four densities.

  I-Blūm F18 I-Blūm F23 I-Blūm F50 I-Blūm F70
General classification Light PCC Medium PCC Heavy PCC Extra Heavy PCC
Brightness (%) ≥ 98 ≥ 98 ≥ 98 ≥ 98
Median particule (µm) 1.8 2.5 5.0 7.0
Tapped density (g/cm3) 0.50 0.70 0.90 1.05



Our calcium carbonate food additive grades:

  • Are registered for use as food additives under European Directive 1129/2011 (EC)
    Calcium Carbonates: E170
  • Comply with required purity criteria set out in European Directive 231/2012 (EC) 
  • Comply with US FDA Standards for Food Additives
  • Comply with purity criteria under Food Chemical Codex, VIII Edition
  • Comply with Japanese Standards for Food Additives, VIII Edition
  • Comply with Kosher and Halal food specifications 
  • Do not contain allergens 


Process quality is guaranteed by:

  • Production in compliance with Food Good Manufacturing Practices (GMP) 
  • HACCP in place at all relevant sites 
  • All sites certified ISO 9001:2015



The Food Regulatory Package and Kosher certificate are available from our download center.

We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us, we will be only too happy to help

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Food & Beverage