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DC Labs - Calcium 600 with D - 60 Tablets

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Calcium with Vitamin D. Made in America.*
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MSRP: $14.50
EarthTurns: $9.57
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Douglas Laboratories - Osteo-Support Formula - 120 Tablets

Supports healthy bone structure and function*
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EarthTurns: $37.00
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Integrative Therapeutics - Calcium - 180 Tablets

Supports healthy bone-building action*
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EarthTurns: $14.50
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Integrative Therapeutics - Calcium D-Glucarate - 90 Capsules

Promotes healthy estrogen metabolism*
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EarthTurns: $40.90
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Metagenics - Cal Apatite Bone Builder® - Active - 180 Tablets

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Metagenics Cal Apatite Bone Builder Active provides nutrients to strengthen the skeletal system*
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EarthTurns: $68.14
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Product trademark(s) are trademarks of Metagenics, Inc. and are used with permission.
Metagenics - Cal Apatite Bone Builder® - Extra Strength

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Metagenics Cal Apatite Bone Builder Extra Strength promotes increased bone density*
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Starting at: $32.78
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This site is not owned or operated by Metagenics, Inc.
Product trademark(s) are trademarks of Metagenics, Inc. and are used with permission.
Pure Encapsulations - +CAL+ with Ipriflavone

Calcium supplement with Ipriflavone for osteoporosis prevention and support.*
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Starting at: $41.10
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Pure Encapsulations - Calcium (citrate)

Highly bioavailable calcium chelate.*
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Starting at: $22.20
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Pure Encapsulations - Calcium (MCHA)

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Helps support women with menopausal osteoporosis.*
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Starting at: $48.90
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Pure Encapsulations - Calcium K/D - 180 Capsules

Calcium with added Vitamin K and D.*
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EarthTurns: $28.10
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Pure Encapsulations - Calcium with Vitamin D3 - 180 Capsules

Helps build strong bones and prevent osteoporosis.*
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EarthTurns: $24.60
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Pure Encapsulations - Calcium-d-Glucarate

Helps support liver detoxification.*
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Starting at: $61.00
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Thorne Research - Calcium D-Glucarate - 90 Capsules

Supports hormone metabolism and liver detoxification.*
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Douglas Laboratories - Osteo-Guard Plus Ipriflavone - 120 Tablets

Supports maintaining good bone health*
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EarthTurns: $40.80
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Douglas Laboratories - Calcium Microcrystalline Hydroxyapatite

Supports maintaining healthy bone function*
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Starting at: $17.90
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Douglas Laboratories - Calcium D-Glucarate - 90 Capsules

D-glucaric acid bound to calcium*
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EarthTurns: $62.80
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DC Labs - Calcium Citrate 1,500 mg w/D

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Calcium Citrate with D.*
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Starting at: $8.58
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DC Labs - Calcium Citrate 950 mg w/D

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Highly Absorbed Calcium*
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Starting at: $8.91
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DC Labs - Calcium Lactate 10 Grains (650 mg)

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Calcium lactate, for strong bones.*
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Starting at: $8.65
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DC Labs - Calcium Lactate Powder - 8 Ounces

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Calcium lactate, for strong bones.*
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MSRP: $12.00
EarthTurns: $7.98
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Natural Calcium Supplements

Calcium is one of the most important and abundant minerals in the body. It is absorbed in the small intestine, and this process is dependent on vitamin D. To provide the rigid structure of the skeleton calcium is vital. Approximately 3 pounds of the body's weight is calcium, 99 % being in the teeth and bones. Calcium is important in growing children to help bones grow and in the elderly, as the ability to absorb calcium becomes impaired with age.

Functions of Calcium

Together with magnesium, calcium is needed for nerves and muscles to function properly. It also helps to maintain the right acid/alkaline balance and helps blood to clot. An adult needs a daily calcium intake of between 700 and 1000mg. Those at risk of osteoporosis may need as much as 1500mg a day. This protection is boosted when combined with linoleic acid from evening primrose oil. Calcium and phosphorus work together on a ratio of two to one for healthy teeth and bones and calcium and magnesium work together for cardiovascular health. The two most deficient minerals in a woman's diet are calcium and iron.

Calcium supplements have been shown to protect against pre-eclampsia which is high blood pressure in pregnancy. It is a good idea to increase calcium consumption during the last three months of pregnancy and the first few months of lactation to ensure that the baby gets sufficient amount of calcium to help bone development and growth. If the baby doesn't get enough calcium from its mother, it will be withdrawn from the mother's bones, possibly leading to bone disease in the future.

Signs of prolonged calcium deficiency are rickets, osteomalacia and osteoporosis.

Calcium, like sodium and potassium, contributes to both extracellular and intracellular cell environment. Calcium is also needed as intercellular cement to keep the cells of the body together. It also controls fluid to allow enzyme reaction to take place. Calcium is vital for the contraction of muscle. The brain sends nerve impulses that release calcium in the muscle which triggers muscle reactions. Calcium also helps to control cholesterol.

Calcium helps in the process of secretion: bile, pancreatic fluid, gastric, intestinal, hormonal and mucous all rely on calcium to move the small droplets through the cells boundaries and cell walls.