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LifeStream Natural Calcium Powder


  • 100gm

    RRP: $19.50

    You save 11% ($2.20)

  • 250gm

    RRP: $34.10

    You save 28% ($9.50)

Lifestream Natural Calcium is a breakthrough in calcium supplements, providing a genuine source of highly bioavailable natural calcium.

What is Lifestream Natural Calcium made from?

Lifestream Natural Calcium is produced from a certified organic sea vegetable called Lithothamnium calcareum and demonstrates advanced bioavailability. Lifestream Natural Calcium contains 32-34% elemental calcium and other important co-factor minerals including boron, magnesium, zinc, copper, iodine and sulphur.

The Benefits of taking Lifestream Natural Calcium:

  • The only calcium supplement that is Certified Organic and a genuine natural food
  • Helps to build strong healthy bones and nails
  • Helps to support bone density and strength as you age
  • Supports skeletal strength and posture of the spine
  • Strengthens and builds strong healthy teeth
  • Lessens the physical and emotional experience of PMS
  • Good bioavailability and well absorbed by the body
  • 100% dairy-free, G.E. free, animal free, vegetarian and gluten free
  • Contains other necessary minerals including magnesium, zinc, boron, selenium
  • Contains NO hydroxyapatite (crushed cow bone) and no animal products.
  • Contains NO preservatives or synthetic additives
  • Available in easy-to-swallow capsules or powder
  • Not synthetically produced or made from chalk
  • A complete and natural calcium food

The most important aspect when taking calcium is the bioavailability of the calcium. Calcium digestibility, solubilisation, absorption and organ uptake and release are important metabolic events when considering calcium bioavailability.

Is Lifestream Natural Calcium well absorbed by the body?

Yes. This is due to 3 unique aspects:

  1. LifestreamNatural Calcium has a unique porous ‘honeycomb-like’ structure which reacts particularly well in the digestive system and gives it high absorption properties.
  2. A Lifestream Natural Calcium molecule has a very large surface area. This allows faster solubilisation and rapid ionisation of the calcium.
  3. Lifestream Natural Calcium also contains other important minerals necessary for the absorption of calcium including magnesium, boron, selenium, zinc, copper and iodine.

Bioavailability studies

A study comparing the bioavailability of Lithothamnium calcareum (the ingredient in Lifestream Natural Calcium) versus calcium carbonate revealed a higher degree of bioavailability for Lithothamnium than calcium carbonate. The results indicated a significantly higher calciuric response for Lithothamnium than the calcium carbonate and therefore demonstrated greater bioavailability. Further to this, those women who had consumed Lithothamnium experienced a more prolonged decline in serum parathyroid hormone (PTH) levels. Since PTH increases as calcium drops in the blood, the researchers concluded that Lithothamnium suppresses this response for longer and is a further indication of increased bioavailability1.

In a comparative study to evaluate the solubility of Lithothamnium calcareum (Lifestream Natural Calcium) against various other calcium sources at 3 different pH levels, Lifestream Natural Calcium proved to be the most soluble. The test method used a calcium ion selective electrode and specially designed buffer system for a more realistic digestive measure of solubility. The results showed better solubilisation of the calcium in Lithothamnium compared to two other calcium sources2.

Calcium, Vitamin D and weight-bearing exercise for strong bones

Not only is it important to ensure an adequate intake of calcium in the diet, but vitamin D plays an important role in maintaining calcium levels. Exercise, especially weight-bearing exercise is also very important to increase bone strength.

People who get plenty of sun exposure do not normally require supplemental vitamin D since sunlight induces vitamin D synthesis when it strikes bare skin. As Lifestream Natural Calcium is sourced from a pure, natural sea vegetable, it does not contain added Vitamin D. For those people who have limited outdoor sun exposure, they will find that cod liver oil is an excellent dietary source of vitamin D and traces of vitamin D are also found in egg yolks, butter and Lifestream Chlorella.

Weight-bearing exercise is any activity in which your bones and muscles work against gravity. This includes any movement in which your feet and legs bear your weight. Examples of weight-bearing exercise include walking, jogging, aerobics, tennis and dancing. It is generally recommended that we do 20-30 minutes of weight bearing exercise 3-4 times a week to help increase bone mass.

Do you have to take Calcium and Magnesium at the same time in a ratio of 2:1?

No. There are no natural calcium rich foods with a 2:1 calcium magnesium ratio and instead the ratio of calcium to magnesium varies considerably in all foods. Human breast milk contains calcium and magnesium in a ratio of 10:1 – just like cow’s milk and other natural foods. Many human cultures like the Chinese and Japanese have had strong bones for thousands of years without ever taking or relying on calcium and magnesium at a 2:1 ratio3,4.

How to take Lifestream Natural Calcium

Lifestream Natural Calcium is available in capsules and powder form. Each capsule contains 300mg of elemental calcium plus other important minerals. Each level teaspoon (2.8g) of Lifestream Natural Calcium powder provides 924mg of elemental calcium. Lifestream Natural Calcium is best taken with food at night time for optimum absorption. Lifestream Natural Calcium powder can be sprinkled onto food (just prior to serving) and can be mixed with juices. Capsules are not recommended for small children (due to the choking hazard) and therefore we advise that Lifestream Natural Calcium powder is used instead – it can be sprinkled onto young children’s food or drinks.


1. Zenk J.L, Leikam S.A, Kuskowski M.A. A single dose pharmacokinetic and pharmacodynamic comparison of two calcium supplements in pre-menopausal women. Minnesota Applied Research Center, Chanhassen, MN and Geriatric Research Education and Clinical Center, Veterans Administration Medical Centre, Minneapolis, MN. August 2004.

2. Assoumani M B. A natural calcium supplement derived from seaweed. Agro-Food Industry Hi-Tech – September/October 1997: 45-47.

3. Ling X, et al. Vertebral fractures in Beijing, China: the Beijing Osteoporosis Project. J Bone Miner Res. 2000 Oct;15 (10):2019-25

4. Dennison, E et al. Bone loss in Great Britain and Japan: a comparative longitudinal study. Bone 1998 Oct;23 (4):379-382.

Heaney RP. Calcium in the prevention and treatment of osteoporosis. J Intern Med. 1992 Feb;231(2):169-80

Power ML. The role of calcium in health and disease.Am J Obstet Gynecol. 1999 Dec;181(6):1560-9.

Specker B. Evidence for an Interaction between Exercise and Nutrition for Improved Bone Health during Growth.Med Sport Sci. 2007;51:50-63.


Children 1-11 years: Take quarter to half teaspoon daily.
12 years plus: Take half to 1 teaspoon daily.
Pregnant or breastfeeding mothers: Take 3 quarter to 1 and a half teaspoons daily.
Take after food to improve absorption.
Add to smoothies, water with a squeeze of lemon, juices or use in baking.
How to take Lifestream Natural Calcium
Lifestream Natural Calcium is available in capsules and powder form. Each capsule contains 300mg of elemental calcium plus other important minerals. Each level teaspoon (2.8g) of Lifestream Natural Calcium powder provides 924mg of elemental calcium. Lifestream Natural Calcium is best taken with food at night time for optimum absorption. Lifestream Natural Calcium powder can be sprinkled onto food (just prior to serving) and can be mixed with juices. Capsules are not recommended for small children (due to the choking hazard) and therefore we advise that Lifestream Natural Calcium powder is used instead – it can be sprinkled onto young children’s food or drinks.
100% Premium Lithothamnium calcareum sea-vegetable.

Each Teaspoon (2.8gm) Typically Provides:

Calcium 924mg
Magnesium 79mg
Phosphorus 1.7mg
Boron 22mcg
Selenium 2.8mcg
Zinc 6mcg
Copper 5.6mcg
Sulphur 8.4mcg
Iodine 6mcg


Being the first to bring Spirulina ‘down under’ in the 1980s, LifeStream launched their Aloe Vera products soon after. Along with the Spirulina range (tablets, powder and capsules) Aloe Vera still remains one of their most popular products. LifeStream also offers Alkalising green powders, antioxidant supplements and a range of immune support products.

Not all vitamin supplements are created equal; in fact many dietary supplements are synthetically produced. LifeStream only uses the best ingredients from Mother Nature that keep in line with their wholefood philosophy. They pride themselves on high integrity, sourcing premium quality ingredients around the world from ethical, sustainable sources - organic where it is the best option available.

Lifestream’s plant-based real food supplements unlock the power of nature so our bodies can easily absorb the natural nutrients. This is why they are known in the natural health world as specialists and reason that LifeStream is one of the most highly recommended brands.

Your satisfaction is of paramount importance to us! If we can help in any way please contact us using the details below.

Email: [email protected]

Australia Free Phone: 1800 040 156

Other Countries Phone: +64 3 265 9758

Live Chat: Between the hours of 7:30am – 8pm AEST

You can also subscribe to the HealthPost email newsletter for all the latest news, health info and exclusive special offers. Find out more about our guarantee, payment options and delivery times, or view our FAQs page for frequently asked questions and answers.

We also highly recommend reading product reviews. They can be a great way of finding out that little bit extra about products you're interested in.

We publish all helpful customer reviews, including negative reviews - these are genuine!

Customer Reviews

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Items 1 to 10 of 12 total

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This product is easy to take as it dissolves well in water, has no unpleasant taste & we think the best absorbed. Review by
  • star

Of all the calcium supplements we have tried over the years this one is the best as it really does work in preventing muscle leg cramps at night, is easy to take as no large capsules to swallow, just mix with water and see how it completely dissolves (this is a very good indication of how well it works). Plus it has no unpleasant taste. All in all a very good product especially for those who cannot tolerant dairy and need extra calcium.

Great Product Review by
  • star

Normally calcium supplements have given me indigestion but this one is so easy to use with food or drink with no uncomfortable side effects. Also being organic is a huge plus and it provides me with that extra bit of calcium my body needs as I not eat a lot of dairy product.
I would recommend it to anyone looking for a good calcium supplement.

Easy to use, little flavour, great product. Review by
  • star

Out of all the many calcium supplements we have tried over many years, this is definitely now our favourite. We are both getting on in years & with health issues requiring a calcium supplement we find this easy to take either sprinkled on our food on in a little water. It has stopped the cramps my husband got very badly as well.

good for me product Review by
  • star

I have tried a lot of calciums of different types and brands. This has worked for me by far the best. FEELS good. My nails got stronger fairly quickly ( one of my big indicators) Easily digested and absorbed I think. (Some I have tried felt like rocks running through my body). I use muscle testing and have found others I can take for a while then 'nope' body does not want any more although body also tests for needing calcium sooo.... This has worked great and on goingly.By the way thanks to the reviewer for tip on putting in tooth paste.

Outstanding calcium product Review by
  • star

I am so glad to have this organic vegetable calcium. I like it because it is so smooth and also supplies lots of other important minerals. I have been taken it for months and feel good with my body. I have recommended it to my friends and they love it too. The service of HealthPost is also wonderful. I will be a loyal customer to HealthPost. Thanks so much!

Great calcium product Review by
  • star

Great to find an organic vegan calcium source. Love that it also supplies lots of other important minerals as well ie. Zinc and Selenium. Great value for money. Blends well into smoothies or into breakfast.

Great product for using in toothpaste Review by
  • star

I make my own remineralising toothpaste and use this product in it. I find it great. Considering I needed a root canal 1.5 years ago and chose to fix it with this toothpaste instead, all pain has gone since using this product, I would recommend it.

Personal Preference - Powder vs Capsule Review by
  • star

I thought the powder represented great value for money. The problem being that I kept forgetting to add to my food or drink. I usually swallow a few capsules morning and night, so it was a matter of retraining my thinking. It is not as convenient. I've added it to smoothies and that works great. Sprinkled it on my breakfast and - no thanks not again. I've mixed it in water with a few lemon drops and it is palatable. So really it's a personal choice.

Loving the LifeStream Calcium Review by
  • star

A really smooth blend of natural calcium that feels gentle on my stomach - my body craves it! Recommended to me by my naturopath. I add 1tsp to a glass of water each day and it's just like drinking milk - a treat for us dairy/milk free! :-)

We find Lifestream pleasant in tast... Review by
  • star

We find Lifestream pleasant in taste- since I put 1/2 a teaspoon of it into my mouth after brushing teeth, tooth decay has virtually stopped. Calcium in the saliva improves dental health

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