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Is AlgaeCal Calcium Citrate or Carbonate? The Answer Revealed

3 min read

Research shows that AlgaeCal is neither calcium citrate nor carbonate exclusively, but a unique blend sourced from marine algae. Unlike many traditional supplements derived from rock sources, AlgaeCal offers a plant-based mineral matrix that includes a variety of different calcium forms.

Quick Summary

AlgaeCal is a plant-based calcium from marine algae, not a pure citrate or carbonate. It contains a natural blend of minerals, offering a different approach to bone health supplements.

Key Points

  • Not a Single Compound: AlgaeCal is not purely calcium citrate or calcium carbonate; it is a blend of different calcium forms naturally present in marine algae.

  • Plant-Based Source: Unlike rock-sourced calcium carbonate and citrate, AlgaeCal comes from Mesophyllum superpositum, a type of red ocean algae.

  • Rich in Trace Minerals: The supplement contains a wide spectrum of other bone-supporting nutrients like magnesium, boron, and strontium, which aid absorption and function.

  • Different Absorption Profile: Its whole-food nature and companion minerals give AlgaeCal a distinct absorption process compared to conventional rock-based supplements.

  • Digestive Benefits: AlgaeCal is often cited as being gentler on the stomach than calcium carbonate, potentially reducing common digestive side effects.

  • Multiple Calcium Forms: The algae naturally provides calcium in multiple forms, including carbonate, hydroxide, sulfate, and chloride, not just one type.

In This Article

The AlgaeCal Difference: Beyond Citrate and Carbonate

When comparing AlgaeCal to calcium citrate or calcium carbonate, the fundamental difference lies in its source. While standard supplements are manufactured from mined rocks like limestone or marble, AlgaeCal is a whole-food supplement derived from a specific species of red marine algae known as Mesophyllum superpositum. This natural, plant-based origin is key to understanding its composition and function.

A Natural Blend of Calcium

Instead of being a single, isolated chemical compound, the calcium in AlgaeCal is part of a complex mineral matrix. In fact, the product is known to naturally contain several different forms of calcium, including calcium carbonate, calcium hydroxide, calcium sulfate, and calcium chloride, all pre-digested by the marine algae itself. This contrasts sharply with supplements that offer only one form of calcium, whether it be citrate or carbonate, leading to a different absorption process and overall effect on the body.

The Whole-Food Advantage

Another crucial aspect of AlgaeCal is its comprehensive mineral profile. The supplement isn't just calcium; it also includes a wide array of other bone-supporting nutrients that are naturally present in the algae. These trace minerals work in synergy with the calcium to aid absorption and bone metabolism. Key companion nutrients often found in AlgaeCal and AlgaeCal Plus include:

  • Magnesium
  • Vitamin D3
  • Vitamin K2
  • Boron
  • Potassium
  • Strontium
  • Zinc

This multi-nutrient approach is a significant departure from many conventional supplements, which often focus on calcium in isolation. The natural partnership of these minerals and vitamins is designed to make the calcium more bioavailable and effective for bone-building.

Traditional Calcium Sources: Carbonate vs. Citrate

Understanding the differences between the two most common types of rock-based calcium supplements provides valuable context for why AlgaeCal is unique.

Calcium Carbonate

This is the most common and inexpensive form of calcium. It is 40% elemental calcium by weight, meaning you get more calcium per pill.

  • Source: Mined rock, such as limestone.
  • Absorption: Requires stomach acid for absorption, so it must be taken with food for best results.
  • Side Effects: Can cause digestive issues like gas, bloating, and constipation, especially in sensitive individuals.
  • Suitability: Best for those with normal stomach acid who don't experience digestive discomfort.

Calcium Citrate

This form is more easily absorbed by the body, especially for those with low stomach acid.

  • Source: Synthetically produced, often from rock sources.
  • Absorption: Does not require stomach acid, so it can be taken with or without food.
  • Elemental Calcium: Contains only 21% elemental calcium by weight, meaning more pills are needed to reach the same dosage as calcium carbonate.
  • Suitability: A good option for older adults and those taking antacids or with sensitive digestion.

Comparison Table: AlgaeCal vs. Carbonate vs. Citrate

Feature AlgaeCal Calcium Carbonate Calcium Citrate
Source Plant-based marine algae (Mesophyllum superpositum) Mined rock (limestone or marble) Synthetic (from rock or plant origin)
Elemental Calcium Varies (around 30-38% in the whole algae powder) High (40%) Moderate (21%)
Absorption Generally well-absorbed, considered body-friendly Requires stomach acid; take with food Can be absorbed without food
Companion Nutrients Contains naturally occurring minerals and added vitamins None naturally; often fortified separately None naturally; often fortified separately
Digestive Impact Gentle on the digestive system Can cause gas, bloating, and constipation Generally well-tolerated

Why the Source of Calcium Matters

The origin of a calcium supplement directly impacts its effectiveness in the body. AlgaeCal's plant-based nature means the minerals are delivered in a form that is more readily recognized and absorbed by the body, potentially leading to better outcomes for bone density. Studies have shown that the algae-derived calcium can promote greater bone-building activity in human bone cells compared to traditional rock-based forms. This is often attributed to the combination of calcium and the full spectrum of trace minerals and vitamins found in the whole-food source. Choosing a supplement is not just about the elemental calcium content, but also about the form and accompanying nutrients that aid in its utilization.

Conclusion

To answer the question, AlgaeCal is not a single chemical compound like calcium citrate or calcium carbonate. Instead, it is a plant-based, multi-mineral supplement derived from marine algae that naturally contains various forms of calcium alongside other vital bone-supporting nutrients. This positions it as a distinct alternative to conventional rock-based calcium products, offering a whole-food approach to supporting bone health. Individuals should consider not only the type of calcium but also the overall nutritional profile when choosing a supplement to meet their bone health needs. For further information on maintaining bone health, consult resources from authoritative organizations such as the Bone Health & Osteoporosis Foundation.

Frequently Asked Questions

The manufacturer and some studies suggest AlgaeCal is better because it's plant-based, contains a matrix of other minerals, and may increase bone density, while calcium carbonate primarily slows bone loss.

For best absorption, AlgaeCal is recommended to be taken with food. When you eat, your stomach produces acid that helps dissolve the minerals for proper absorption.

AlgaeCal's calcium is sourced from a hand-harvested, organic red marine algae called Mesophyllum superpositum (also known as Algas calcareas), found off the coast of South America.

Most people who experience stomach issues with rock-based supplements do not report similar adverse effects with AlgaeCal, as its plant-based origin and mineral balance make it easier to digest.

AlgaeCal is the base marine algae powder with added Vitamin D3. AlgaeCal Plus includes additional vitamins C, K2, and higher levels of magnesium and boron for enhanced bone support.

Yes, AlgaeCal contains naturally occurring trace amounts of strontium from the marine algae. A separate supplement, Strontium Boost, is also offered for higher doses.

While the marine algae itself is plant-based, the standard AlgaeCal products are not always vegan. For instance, the Vitamin D3 may be derived from lanolin (sheep's wool), so it is best to check specific product formulations.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.