Nutri Advanced is now part of Metagenics
Algae-Sourced Calcium 90 Capsules
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Algae-Sourced Calcium 90 Capsules

Clinically-backed, plant-based calcium with magnesium, boron, and vitamin D3—affordable, effective bone support

Our trusted daily Algae-Sourced Calcium, same expert formula, now with a brand new look!

Rating:
94 % of 100
£43.99
Select Purchase Type
£43.99
  • Vegetarian
  • Vegan
  • Gluten-free
  • Dairy-free
  • Soya-free
  • Non-GMO
  • Suitable for Pregnancy
  • Suitable for Breastfeeding

Algae-Sourced Calcium is back with brand-new packaging under Metagenics, delivering the same expert formula you trust.

Unlike standard calcium supplements that simply slow down bone loss, Algae-Sourced Calcium is clinically-proven to increase bone density. A one-year study on post-menopausal women found an average bone density increase of 1.3%, an impressive result that traditional calcium supplements do not achieve.

Made from red ocean algae, this expert formula naturally contains 13 essential bone-supporting nutrients, including magnesium, boron, and strontium, to support long-term skeletal health. Easy to absorb and backed by clinical studies, it’s a smarter, more affordable and effective way to maintain strong and healthy bones.

As well as being organic and sustainably sourced, Algae-Sourced Calcium is a lot easier to take compared to traditional calcium tablets that are often large, chalky tablets that have to be chewed. Clinical studies have shown that this natural form of algae-sourced calcium increases ALP activity - a marker of bone growth - more effectively than calcium carbonate and calcium citrate - see graph below.

The vitamin D3 that is also present in Algae-Sourced Calcium is the body's preferred form as it is the same form we naturally produce in response to sunlight so is easier for the body to absorb than vitamin D2.

Effects of algae-sourced calcium (AC), calcium carbonate and calcium citrate on ALP levels (a marker of bone growth)1

The Algas Calcareas used in Algae-Sourced Calcium is hand-harvested in an ecologically responsible way. It washes up on the beach naturally, and is then hand-harvested within 48 hours. The crop is rotated from beach to beach to be sure not to interfere with the natural cycle of the marine algae meaning Algae-Sourced Calcium offers a natural and eco-friendly way to supplement with key minerals to support bone health.

As well as supporting normal bones, Algae-Sourced Calcium contains minerals that support many other areas of the body. Magnesium is often referred to as the 'spark of life' as it is necessary for energy production in the body, as is calcium as they both contribute to normal energy-yielding metabolism.

Calcium, magnesium and vitamin D also contribute to the maintenance of healthy teeth as well as bones and normal muscle function. Vitamin D is well known for its role in supporting immune health and the amount delivered is well above the NRV (Nutrient Reference Value) - the daily amount recommended.

AlgaeCal is the only calcium supplement supported by clinical research to increase bone density. A 2011 study published in the Journal of the American College of Nutrition examined three AlgaeCal formulations in post-menopausal women over one year, showing an increase in bone density across all groups, with an average minimum increase of 1.3%.

This is a significant result, as traditional calcium supplements only slow the rate of bone loss. DEXA scans confirmed bone density gains, setting AlgaeCal apart from conventional calcium supplements.

AlgaeCal is the only calcium supplement supported by clinical research to increase bone density. A 2011 study published in the Journal of the American College of Nutrition examined three AlgaeCal formulations in post-menopausal women over one year, showing an increase in bone density across all groups, with an average minimum increase of 1.3%.

This is a significant result, as traditional calcium supplements only slow the rate of bone loss. DEXA scans confirmed bone density gains, setting AlgaeCal apart from conventional calcium supplements.

Our new label design has been introduced to help you to find a product that’s right for you, simplifying the way you navigate our range. The new labels provide you with more product information and better highlight the core benefit of each product. For example, you will see new health need colours and descriptions that make it easier to identify ranges and highlights the products main benefit.

Nutri Advanced is transitioning to the Metagenics brand to align more closely with our global family, who we joined in 2022. We have worked closely with Metagenics for decades with many of our products produced from their European Headquarters in Belgium. Metagenics is a global leader in the professional supplements market and is renowned for clinically proven, precision-crafted formulas to support your health. In 2024, they were voted the No. 1 Doctor Recommended Professional Supplement Brand in the US. They also held the No. 1 VMS position in Belgium for their Magnesium product, MetaRelax, and had the most prescribed probiotics brand among health professionals in Italy and Australia.

The change from Nutri Advanced to Metagenics will give you access to even more ground-breaking new product innovations and nutritional resources whilst maintaining our trusted formulations and excellent UK based customer service.

Orders placed by 2pm Monday - Friday will be despatched the same working day.

 

Delivery Costs

Royal Mail 24: Free Delivery

Royal Mail Tracked 24: £5.50 for orders under £45. Free for orders over £45. 

Special Delivery Before 1pm: £9.50

 

NB Please note that Royal Mail 24 is not available for orders over £100. Royal Mail Tracked 24 is offered as an alternative option.

Take 2 capsules in the morning and one in the evening, with meals, or vice versa.

Metagenics supplements should not be used as a substitute for a varied diet and healthy lifestyle. Results may vary between individuals.

Metagenics supplements should not be used as a substitute for a varied diet and healthy lifestyle. Results may vary between individuals.

  • Science-Backed: The only calcium supplement proven to increase bone density.
  • High-Strength Formula: 750mg calcium and 65mg magnesium for bone support.
  • Superior Absorption: 1000IU vitamin D3 enhances calcium uptake and use.
  • Target Bone Support: Includes boron, manganese, phosphorus, and strontium.
  • Highly Effective: Outperforms standard calcium carbonate in clinical trials.
  • Easy-to-Swallow: A convenient, non-chalky capsule format.
  • Affordable Support: Cost-effective for maintaining long-term bone strength.

3 capsules typically contain:

  % NRV*
Calcium (from AlgaeCal®) (Algas calcareas) 750mg 94
Magnesium (from AlgaeCal®) (Algas calcareas) 65mg 17
Vitamin D3 (Cholecalciferol) (1000iu) 25µg 500
Boron 3mg **

 

* NRV is the Nutrient Reference Value

Other ingredients:
Tricalcium phosphate
Magnesium stearate
Silicon dioxide

Suitable for adults and children, in particular women who are over the age of 40, breast-feeding or pregnant.

Algae-Sourced Calcium is vegan and also suitable for those who's diet may be lacking in balanced calcium sources such as lactose intolerant people.

The vitamin D3 in this product is from algae – a vegan source of vitamin D3.

If taking any kind of medication or have a medical condition, consult a healthcare practitioner before using this product

This product is hypoallergenic / does not contain any of the 14 major allergens listed in Annex II (1169/2011) of the EU Food Information for Consumers Regulation.

  1. Exclusive Interview with Lara Pizzorno

    Exclusive Interview with Lara Pizzorno

    Lara Pizzorno, natural bone health expert, shares key research from her new book 'How You Can Prevent Osteoporosis And Have Strong Bones For Life - Naturally'
  • Science-Backed: The only calcium supplement proven to increase bone density.
  • High-Strength Formula: 750mg calcium and 65mg magnesium for bone support.
  • Superior Absorption: 1000IU vitamin D3 enhances calcium uptake and use.
  • Target Bone Support: Includes boron, manganese, phosphorus, and strontium.
  • Highly Effective: Outperforms standard calcium carbonate in clinical trials.
  • Easy-to-Swallow: A convenient, non-chalky capsule format.
  • Affordable Support: Cost-effective for maintaining long-term bone strength.

Algae-Sourced Calcium is back with brand-new packaging under Metagenics, delivering the same expert formula you trust.

Unlike standard calcium supplements that simply slow down bone loss, Algae-Sourced Calcium is clinically-proven to increase bone density. A one-year study on post-menopausal women found an average bone density increase of 1.3%, an impressive result that traditional calcium supplements do not achieve.

Made from red ocean algae, this expert formula naturally contains 13 essential bone-supporting nutrients, including magnesium, boron, and strontium, to support long-term skeletal health. Easy to absorb and backed by clinical studies, it’s a smarter, more affordable and effective way to maintain strong and healthy bones.

As well as being organic and sustainably sourced, Algae-Sourced Calcium is a lot easier to take compared to traditional calcium tablets that are often large, chalky tablets that have to be chewed. Clinical studies have shown that this natural form of algae-sourced calcium increases ALP activity - a marker of bone growth - more effectively than calcium carbonate and calcium citrate - see graph below.

The vitamin D3 that is also present in Algae-Sourced Calcium is the body's preferred form as it is the same form we naturally produce in response to sunlight so is easier for the body to absorb than vitamin D2.

Effects of algae-sourced calcium (AC), calcium carbonate and calcium citrate on ALP levels (a marker of bone growth)1

The Algas Calcareas used in Algae-Sourced Calcium is hand-harvested in an ecologically responsible way. It washes up on the beach naturally, and is then hand-harvested within 48 hours. The crop is rotated from beach to beach to be sure not to interfere with the natural cycle of the marine algae meaning Algae-Sourced Calcium offers a natural and eco-friendly way to supplement with key minerals to support bone health.

As well as supporting normal bones, Algae-Sourced Calcium contains minerals that support many other areas of the body. Magnesium is often referred to as the 'spark of life' as it is necessary for energy production in the body, as is calcium as they both contribute to normal energy-yielding metabolism.

Calcium, magnesium and vitamin D also contribute to the maintenance of healthy teeth as well as bones and normal muscle function. Vitamin D is well known for its role in supporting immune health and the amount delivered is well above the NRV (Nutrient Reference Value) - the daily amount recommended.

AlgaeCal is the only calcium supplement supported by clinical research to increase bone density. A 2011 study published in the Journal of the American College of Nutrition examined three AlgaeCal formulations in post-menopausal women over one year, showing an increase in bone density across all groups, with an average minimum increase of 1.3%.

This is a significant result, as traditional calcium supplements only slow the rate of bone loss. DEXA scans confirmed bone density gains, setting AlgaeCal apart from conventional calcium supplements.

AlgaeCal is the only calcium supplement supported by clinical research to increase bone density. A 2011 study published in the Journal of the American College of Nutrition examined three AlgaeCal formulations in post-menopausal women over one year, showing an increase in bone density across all groups, with an average minimum increase of 1.3%.

This is a significant result, as traditional calcium supplements only slow the rate of bone loss. DEXA scans confirmed bone density gains, setting AlgaeCal apart from conventional calcium supplements.

Our new label design has been introduced to help you to find a product that’s right for you, simplifying the way you navigate our range. The new labels provide you with more product information and better highlight the core benefit of each product. For example, you will see new health need colours and descriptions that make it easier to identify ranges and highlights the products main benefit.

Nutri Advanced is transitioning to the Metagenics brand to align more closely with our global family, who we joined in 2022. We have worked closely with Metagenics for decades with many of our products produced from their European Headquarters in Belgium. Metagenics is a global leader in the professional supplements market and is renowned for clinically proven, precision-crafted formulas to support your health. In 2024, they were voted the No. 1 Doctor Recommended Professional Supplement Brand in the US. They also held the No. 1 VMS position in Belgium for their Magnesium product, MetaRelax, and had the most prescribed probiotics brand among health professionals in Italy and Australia.

The change from Nutri Advanced to Metagenics will give you access to even more ground-breaking new product innovations and nutritional resources whilst maintaining our trusted formulations and excellent UK based customer service.

Take 2 capsules in the morning and one in the evening, with meals, or vice versa.

3 capsules typically contain:

  % NRV*
Calcium (from AlgaeCal®) (Algas calcareas) 750mg 94
Magnesium (from AlgaeCal®) (Algas calcareas) 65mg 17
Vitamin D3 (Cholecalciferol) (1000iu) 25µg 500
Boron 3mg **

 

* NRV is the Nutrient Reference Value

Other ingredients:
Tricalcium phosphate
Magnesium stearate
Silicon dioxide

Suitable for adults and children, in particular women who are over the age of 40, breast-feeding or pregnant.

Algae-Sourced Calcium is vegan and also suitable for those who's diet may be lacking in balanced calcium sources such as lactose intolerant people.

The vitamin D3 in this product is from algae – a vegan source of vitamin D3.

If taking any kind of medication or have a medical condition, consult a healthcare practitioner before using this product

This product is hypoallergenic / does not contain any of the 14 major allergens listed in Annex II (1169/2011) of the EU Food Information for Consumers Regulation.

Related Articles

  1. Exclusive Interview with Lara Pizzorno

    Exclusive Interview with Lara Pizzorno

    Lara Pizzorno, natural bone health expert, shares key research from her new book 'How You Can Prevent Osteoporosis And Have Strong Bones For Life - Naturally'

Orders placed by 2pm Monday - Friday will be despatched the same working day.

 

Delivery Costs

Royal Mail 24: Free Delivery

Royal Mail Tracked 24: £5.50 for orders under £45. Free for orders over £45. 

Special Delivery Before 1pm: £9.50

 

NB Please note that Royal Mail 24 is not available for orders over £100. Royal Mail Tracked 24 is offered as an alternative option.