Last update: June 11, 2024

5 minute read

Calcium Citrate

Discover the benefits of calcium citrate for your health. Learn about dosage, side effects, and more in this informative guide.

Stephanie Wright

By Stephanie Wright, RN, BSN

Edited by Dr. Dimitar Marinov, MD, MBA, PhD

Learn more about our editorial standards

Did you know that there's a calcium supplement that goes beyond just supporting your teeth and bones? Get ready to discover the benefits of calcium citrate and how it can revolutionize your health.

Key takeaways

  • Calcium citrate is a calcium supplement that offers high absorption rates
  • It can benefit people with digestive issues or taking heartburn medication
  • Taking calcium citrate with food boosts its absorption and use by the body

    What is calcium citrate?

    What is calcium citrate? Calcium citrate is an over-the-counter calcium supplement that promotes healthy teeth and bones and plays a vital role in blood vessels, muscles, nerves, and hormone function.

    The research of calcium citrate and bone health

    Calcium is a crucial mineral that supports many systems in our body, including our heart, nervous system, and muscles. Calcium supplementation is probably best known for supporting strong bones. However, recent research has yielded mixed results, so let's explore further.

    A recent study analyzed the association between dietary calcium intake and bone mineral density (BMD) in older adults. The findings indicated that higher dietary calcium intake was linked to greater lumbar BMD, but interestingly, this benefit was observed primarily in women.

    To further complicate things, the FDA has approved health claims stating that adequate vitamin D and calcium intake may reduce the risk of osteoporosis. While this might sound promising, it's crucial to understand that not all studies support this claim.

    VitaRx Tip

    When it comes to bone health, maintaining proper calcium levels is essential.

    The potential benefits of calcium citrate

    Calcium citrate is known for its effects on bone health, but what if I told you it may hold even more health benefits? Join us as we explore the potential of calcium citrate in supporting a decrease in the risk of certain conditions.

    Bone health

    Calcium citrate has been shown to be very beneficial for bone health. A study showed that calcium citrate can help maintain bone density in postmenopausal women.

    Women taking calcium citrate kept their bone strength better than those who didn't take the supplement. This suggests calcium citrate may help prevent bone loss after menopause​.

    Heart disease

    Calcium's role in supporting a reduction in cardiovascular disease risk has also been a subject of study. While calcium's ability to reduce lipid absorption seems promising, the research findings have been mixed. For instance, a recent meta-analysis found that calcium supplements actually increased the risk of heart disease in healthy postmenopausal women.

    Other potential benefits

    Calcium citrate has also been linked to potential benefits like supporting weight management and metabolic syndrome. However, it's essential to note that these associations are still being explored, and further research is needed to draw definitive conclusions.

    • Enhanced absorption: Calcium citrate is more easily absorbed by the body compared to other forms like calcium carbonate, making it an ideal option for people with digestive issues or those taking heartburn medication.
    • Versatile formulations: Calcium citrate is available in many forms, like tablets, powder, and gummies, offering flexibility in how it can be consumed.
    • Can be taken on an empty stomach: Unlike some other calcium supplements, calcium citrate can be taken on an empty stomach, providing convenience and flexibility in dosing.

    How to take calcium citrate for best results

    Now that we understand the benefits of calcium citrate, let's dive into the best practices for taking it.

    Dosage and timing

    To make sure you're getting the right amount of calcium citrate, following the recommended dosage guidelines is essential.

    Typically, a suggested dose of 500 milligrams (mg) is a good starting point for people who are consuming much below the recommended daily intake of 1000 mg. However, individual needs may vary, so consulting with a healthcare professional is crucial for personalized advice.

    Regarding timing, calcium citrate can be taken on an empty stomach. However, it's important to note that it is more effective when taken with food.

    VitaRx Tip

    Consuming calcium citrate with meals enhances its absorption and ensures optimal use by your body.

    Interactions and Precautions

    As with any supplement, calcium citrate may interact with certain medications. It's important to inform your healthcare provider about all your medications and supplements to avoid potential complications. Here are some important considerations:

    • Calcium citrate may interact with medications like Dovato and Tivicay (dolutegravir), Synthroid and Levoxyl (levothyroxine), lithium, and quinolone antibiotics.
    • If you have a history of kidney disease, kidney stones, high calcium blood levels, or a parathyroid gland disorder, it's essential to consult with your healthcare provider before starting calcium citrate supplementation.
    VitaRx Tip

    Since dietary supplements are not regulated by the FDA for safety and effectiveness, it's crucial to choose calcium citrate supplements that trusted third-party organizations have tested.

    Frequently asked questions (FAQ)

    Here are some of the most frequently asked questions about calcium citrate.

    Final thoughts

    Calcium citrate not only promotes strong bones and teeth but also supports crucial bodily functions like nerve health, muscle contraction, and hormone regulation. With its high absorption rate and versatile formulations, it stands out as a valuable supplement option.



    Stephanie Wright avatar

    Stephanie brings over 13 years of diverse nursing experience to the table, having honed her expertise in critical care, mental health, and utilization management. Her journey as a registered nurse across these various healthcare sectors underscores her adaptability and deep commitment to patient care.

    Fact checker

    Dr. Dimitar Marinov avatar

    Dr. Marinov has years of experience in scientific research and preventive and clinical medicine. His publications in peer-reviewed journals are on nutritional status, physical activity, and musculoskeletal disorders among adolescents.

    At VitaRx, we're not just passionate about our work — we take immense pride in it. Our dedicated team of writers diligently follows strict editorial standards, ensuring that every piece of content we publish is accurate, current, and highly valuable. We don't just strive for quality; we aim for excellence.

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