These supplements are made from natural, plant-based sources of calcium, such as algae or seaweed. Organic calcium supplements may also be free from artificial additives and preservatives ...

1. New Chapter Calcium Supplement – Bone Strength Organic Red Marine Algae Calcium – with Vitamin D3+K2 + Magnesium, 70+ Trace Minerals for Bone Health, Gluten Free, Easy to Swallow – 120 ...

I rate Raw Calcium as a more natural, easily absorbed option. This supplement provides 1,100 mg of plant-based calcium derived from algae, free from synthetic binders, fillers or crushed rock ...

If a healthcare professional has recommended a vitamin D supplement for calcium absorption ... which is made with vitamin D3 sourced from algae. Why we chose it: We also like this high dose ...