Kirkland Signature Calcium Citrate Magnesium and Zinc 500 Tablets

Calcium citrate is a highly absorbable form of calcium, essential for bone health and muscle function. It is preferred over other forms due to its better absorption rate, especially in individuals with lower stomach acid. This makes it a superior choice for maintaining adequate calcium levels.

Cholecalciferol, or Vitamin D3, is crucial for calcium absorption and bone health. It is the preferred form of Vitamin D due to its superior bioavailability compared to Vitamin D2. Adequate Vitamin D levels are essential for immune function and overall health.

Magnesium oxide is a common form of magnesium used in supplements, known for its high magnesium content per weight. Although it has a lower absorption rate compared to other forms, it is effective for addressing magnesium deficiency. It is often used for its laxative effect and to support muscle and nerve function.

Zinc oxide is a common form of zinc used in supplements, known for its role in immune function and wound healing. It is an effective way to increase zinc intake, although it has a lower absorption rate compared to other forms. It is crucial for maintaining a healthy immune system.

Manganese gluconate is a bioavailable form of manganese, important for bone formation and metabolic processes. It is used in supplements to support enzyme function and bone health. Manganese is essential for the synthesis of connective tissue.

Copper gluconate is a form of copper used in supplements to support cardiovascular and immune health. It is essential for iron metabolism and the formation of red blood cells. Copper is also important for maintaining healthy connective tissues.

Glycine is an amino acid that supports collagen production and has calming effects on the brain. It is used in supplements for its potential to improve sleep quality and joint health. Glycine also plays a role in detoxification processes.

Pyridoxine hydrochloride is a form of Vitamin B6, important for protein metabolism and cognitive development. It is used in supplements to support brain health and energy metabolism. Vitamin B6 is essential for neurotransmitter synthesis.

Standard formulation ingredient — neither beneficial nor harmful at typical use.

Magnesium stearate is commonly used as a flow agent in supplement manufacturing. It ensures even distribution of ingredients in tablets and capsules. While it is generally considered safe, some concerns exist about its potential to inhibit nutrient absorption.

Silicon dioxide is used as an anti-caking agent in supplements to prevent clumping. It is a naturally occurring compound found in many foods and is generally recognized as safe. It does not contribute any nutritional value to the supplement.

Cellulose coating is used to provide a protective layer on tablets, aiding in their stability and ease of swallowing. It is derived from plant fibers and is considered safe for consumption. It does not affect the nutritional profile of the supplement.

Boric acid is sometimes used in supplements for its potential health benefits, but it is not essential for human nutrition. It can be toxic in high amounts and is not typically recommended for supplementation. Its inclusion in supplements is controversial due to potential health risks.