Calcium Citrate Magnesium and Zinc

Kirkland Signature
72 Good
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Near you

Kirkland Signature is carried at Costco stores. Find one within 25 miles.

Summary

This supplement contains beneficial ingredients such as Calcium Citrate and Cholecalciferol, which are highly absorbable and support bone health. However, the use of Magnesium Oxide and Zinc Oxide, while effective, are less bioavailable compared to other forms. The product is relatively clean with minimal additives, but the presence of Magnesium Stearate and Silicon Dioxide, although common, slightly detracts from the overall formulation quality.

At a glance

Beneficial ingredients 7
Harmful ingredients 0
Owned by Costco
Category Vitamins And Minerals

Key ingredients 12

Calcium Citrate
Very Good

Calcium Citrate is a highly absorbable form of calcium, essential for bone health and muscle function. It is preferred over other forms of calcium due to its superior absorption, especially in individuals with low stomach acid. This makes it a beneficial ingredient for maintaining strong bones and preventing osteoporosis.

Benefits

Supports bone health and muscle function, and is highly absorbable.

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Magnesium Oxide
Good

Magnesium Oxide is a common form of magnesium used in supplements, known for its role in muscle and nerve function. Although it has a lower absorption rate compared to other forms, it is effective for addressing magnesium deficiencies. It is beneficial for maintaining normal muscle and nerve function.

Risks

May cause gastrointestinal discomfort in some individuals when taken in high doses.

Benefits

Supports muscle and nerve function and helps maintain normal blood pressure.

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Zinc Oxide
Good

Zinc Oxide is a widely used form of zinc in supplements, crucial for immune function and wound healing. It is less bioavailable than other forms but still effective in providing zinc supplementation. It is beneficial for supporting the immune system and promoting skin health.

Risks

Excessive intake may lead to zinc toxicity, causing nausea and other health issues.

Benefits

Supports immune function and aids in wound healing.

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Manganese Gluconate
Good

Manganese Gluconate is a bioavailable form of manganese, important for bone formation and metabolism. It is well-absorbed and supports enzymatic reactions in the body. This ingredient is beneficial for bone health and metabolic processes.

Risks

High doses may lead to manganese toxicity, affecting the nervous system.

Benefits

Supports bone formation and enzymatic reactions.

Copper Gluconate
Good

Copper Gluconate is a bioavailable form of copper, essential for iron metabolism and neurological function. It is well-absorbed and supports the formation of red blood cells. This ingredient is beneficial for maintaining healthy blood vessels and nerves.

Risks

Excessive intake can lead to copper toxicity, causing liver damage.

Benefits

Supports iron metabolism and neurological function.

Cellulose (Plant Origin)
Neutral

Cellulose is a plant-derived fiber used as a filler and binder in supplements. It is inert and does not provide nutritional benefits but helps in the formation of tablets. This ingredient is neutral as it does not impact health directly.

Croscarmellose Sodium
Neutral

Croscarmellose Sodium is a disintegrant used in tablets to help them dissolve quickly. It is considered safe and does not provide any nutritional benefits. This ingredient is neutral as it serves a functional purpose in tablet formulation.

Magnesium Stearate
Neutral

Magnesium Stearate is a common additive used as a lubricant in supplement manufacturing. It is generally recognized as safe and does not affect the nutritional value of the product. This ingredient is neutral as it is used for manufacturing purposes.

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Silicon Dioxide
Neutral

Silicon Dioxide is used as an anti-caking agent in supplements to prevent clumping. It is considered safe and does not contribute to the nutritional profile of the product. This ingredient is neutral as it serves a functional role in product stability.

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Cellulose Coating
Neutral

Cellulose Coating is used to provide a protective layer on tablets, aiding in swallowing and stability. It is derived from plant sources and is inert. This ingredient is neutral as it does not impact health directly.

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Boron Glycinate
Good

Boron Glycinate is a bioavailable form of boron, which supports bone health and hormone regulation. It is well-absorbed and can enhance the body's use of calcium and magnesium. This ingredient is beneficial for bone density and metabolic functions.

Risks

Excessive intake may lead to boron toxicity, affecting the reproductive system.

Benefits

Supports bone health and hormone regulation.

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Cholecalciferol
Very Good

Cholecalciferol, also known as Vitamin D3, is crucial for calcium absorption and bone health. It is the most effective form of Vitamin D for raising blood levels, especially in individuals with limited sun exposure. This ingredient is highly beneficial for maintaining healthy bones and immune function.

Risks

Excessive intake can lead to Vitamin D toxicity, causing hypercalcemia.

Benefits

Enhances calcium absorption and supports immune function.

Processing

Group 4 · Ultra-processed

Ultra-Processed Foods

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