Our Red Marine Algae grows wild along the coast of Iceland where it is allowed to mature naturally, then is carefully harvested from its marine habitat. Young, living plants are left untouched, preserving the coastal ecosystem.
Plant Calcium Supplements
From New Chapter — the #1 Natural Calcium Brand.§ Plant calcium from Red Marine Algae, not rocks.
Filters
3 products
Plant Calcium Benefits
Promotes bone density and normal bone creation, key for helping to reduce osteoporosis risk
Shown to support improved walking distance in a placebo-controlled trial††
Studies on plant calcium show that it supports a balanced gut microbiome‡
From living plants, not rocks
New Chapter is the #1 Natural Calcium Brand.§ The plant-based calcium in Bone Strength Take Care ™ is sourced from Red Marine Algae (Lithothamnion) harvested from along the pristine Icelandic coastline. Many calcium supplements are not from plant sources of calcium, but from limestone rock that lacks many other bone-supportive nutrients. Our clinically studied Bone Strength Take Care delivers whole-food Calcium, Magnesium and 70 important trace minerals.* We add a proprietary blend of Vitamins K2 & D3 to ensure the body absorbs Calcium properly and effectively.
From living plants, not rocks
We know our source
Our mission every day is to deliver the quality you expect—including responsibly sourced, Non-GMO Project Verified, whole-food Calcium. Knowing our suppliers and the origins of their plants helps us uphold a supply chain that is both socially responsible and environmentally conscious. Our certified organic Red Marine Algae supplement has no limestone, no pesticides, and no animal bone. Just pure, plant ingredients that deliver bone-strengthening calcium your body can recognize as food.
We know our source
† Adequate calcium throughout life, as part of a well-balanced diet, may reduce the risk of osteoporosis.
†† Frestedt et al., Nutr J. 2008 Feb 17;7:9.
‡ Aslam et al., Can Prev Res (Phila). 2020 Jan;13(1):101-116. Crowley et al., Mar Drugs. 2018; 16:216.
§ Leading natural calcium brand in FDMC based on total Nielsen $ sales in the latest 52 weeks through 5/23/2026.
Plant Based Calcium Supplements FAQ
What makes plant based calcium supplements different from traditional calcium?
What makes plant based calcium supplements different from traditional calcium?
Plant based calcium supplements are derived from whole food sources like plants, rather than rocks or limestone. This means they often include additional trace minerals that support bone health.* For example, a plant calcium supplement sourced from algae provides a natural matrix of minerals that look surprisingly like the matrix of human bone! New Chapter is the #1 Natural Calcium Brand,§ with plant calcium sourced from Red Marine Algae instead of limestone rock.
Are plant based calcium supplements a good choice for bone strength?
Are plant based calcium supplements a good choice for bone strength?
Yes, plant based calcium supplements are an excellent choice for supporting bone strength.* They deliver calcium found in plants alongside other bone-supportive nutrients , which can help your body utilize calcium more effectively.* A slim tablet plant calcium supplement is a convenient option for daily bone support.*
Which form of calcium is best for women under 40?
Which form of calcium is best for women under 40?
A plant based calcium supplement for women under 40 can help maintain strong bones as part of a healthy lifestyle.* These formulas often include plant-sourced calcium and may be tailored to the unique needs of younger women.*
Blog posts
Herbal Pain Relief: What Works for Fast Relief vs Ongoing Support
When pain shows up, your body is asking for support. Pain can show up in different ways. For example, after exercise or overuse, you might feel occasional soreness or twinges in muscles or might fe...
What Your Bones Need at Every Decade: 35, 45, 55, and Beyond
When we think about aging, we usually picture skin, fine lines, texture, and tone. But there's a deeper kind of aging happening underneath all of that: structural aging. It's the slow, ongoing shif...
5 Major Health Benefits of Magnesium
Magnesium benefits in the body include hundreds of functions, including energy production, muscle contraction, and blood pressure regulation. Let’s take a look at the different types of magnesium s...