Top Calcium Tablet Brands for Optimal Bone Health

Calcium is an essential mineral that plays a crucial role in maintaining strong bones and overall health, making calcium supplements increasingly popular among those looking to boost their intake. With numerous brands offering various formulations of calcium tablets, finding the best one can be a daunting task, especially with factors like bioavailability and additional nutrients to consider. In this article, we will explore a curated list of the top brands for calcium tablets, considering quality, customer reviews, and value for money. Whether you're seeking a trusted brand or exploring new options, our comprehensive guide below will help you make an informed decision.

Illustration of calcium tablets

Best brands of calcium tablets in 2025

Citracal

Citracal^® is a leading brand in the calcium supplement market, renowned for its high-quality products that combine calcium with Vitamin D3 to support bone health. Recommended by doctors and pharmacists, Citracal^® holds the #1 position in the market, as evidenced by the Pharmacy Times Survey in 2022. The brand offers a variety of formats, including slow-release caplets and gummies, catering to different consumer preferences. With a focus on preventive healthcare, Citracal^® products are designed to reduce the risk of osteoporosis, a condition that affects a significant portion of the aging population. The adult calcium supplement segment, which Citracal^® dominates, is expected to account for a 72.4% value share in 2024. For more information, visit the Citracal website.

Caltrate

Caltrate is renowned as one of the most trusted and clinically studied calcium supplement brands globally, boasting a 30-year legacy in providing high-quality bone health supplements. It offers various formulations, including Caltrate 600+D3, which contains 600 mg of calcium and 20 mcg of vitamin D3 per tablet, maximizing calcium absorption. Caltrate products are available in multiple forms such as tablets, soft chews, and gummy bites, catering to different consumer preferences. The brand is the #1 selling calcium supplement in the United States and worldwide, with its products being utilized in several major clinical studies on osteoporosis. Caltrate's formulations are crafted to support strong bones, muscles, and nerves, making it a leading choice for consumers.

Nature Made

Nature Made is a leading brand in the calcium supplements market, known for its high-quality products that support strong bone health. Their Calcium 600 mg with Vitamin D3 Softgels provide 600 mg of calcium and 10 mcg (400 IU) of Vitamin D3 per serving, helping to meet daily calcium needs and reduce the risk of osteoporosis, a condition affecting a significant portion of the population, with 43% of American adults having dietary calcium intake below the estimated average requirements. The brand's products are free from synthetic dyes, artificial flavors, and preservatives, making them a preferred choice for health-conscious consumers. Nature Made continuously innovates and introduces new products to satisfy changing customer needs, contributing to the rapid growth of the calcium supplements market, expected to reach USD 0.91 billion by 2032 with a CAGR of 6.63% from 2024 to 2032. Their commitment to quality and customer health has made them a trusted name in the industry.

Kirkland Signature

Kirkland Signature is a leading brand in the vitamin and supplement industry, particularly renowned for its high-quality calcium tablets. With a market share of 23% and a revenue of $59 billion, Kirkland Signature stands out as one of the largest vitamin companies in the U.S. Their calcium tablets, such as the Kirkland Signature Calcium 600 mg with Vitamin D3, provide essential nutrients with 600 mg of calcium and 400 IU of Vitamin D3 per tablet, making them a crucial part of a daily health regimen. The brand's products are USP Verified, ensuring quality and efficacy. Given the growing demand for calcium supplements, with the U.S. market projected to expand at a 4.7% CAGR through 2034, Kirkland Signature is well-positioned to meet consumer needs.

Garden of Life

Garden of Life is a renowned brand in the calcium supplements market, particularly noted for its innovative and natural products. Their Vitamin Code Raw Calcium formula, derived from algae, offers 1,100mg of whole food plant calcium per serving, along with vitamins D3 and K2, and magnesium to enhance absorption. This product is designed to increase bone strength and reduce the risk of osteoporosis, making it a preferred choice for health-conscious consumers. In 2024, Garden of Life launched a new product line targeting vegan customers, highlighting the brand's commitment to diverse consumer needs. With its focus on raw, whole food ingredients and the absence of synthetic binders or fillers, Garden of Life stands out in the market.

NOW Foods

NOW Foods is a leading brand in the production of calcium supplements, known for its high-quality calcium tablets that support bone health. The calcium supplement market, which includes products from NOW Foods, is projected to reach a valuation of USD 9,223 million by 2034, growing at a 4.8% CAGR from 2024 to 2034. The adult calcium supplement segment, a key area for NOW Foods, is expected to account for a 72.4% value share in 2024. These supplements often include additional nutrients like vitamin D-3 and zinc to provide a balanced mineral intake. With a strong focus on consumer health, NOW Foods' products are popular among those seeking to prevent calcium deficiency and support overall bone health.

Solgar

Solgar is renowned as one of the top producers of calcium tablets, known for their high-quality and pure formulations. Their Calcium Citrate with Vitamin D3 Tablets, for instance, are highly regarded for bone and joint support, with 99% of the body's calcium found in bones and teeth. Solgar's products are non-GMO, gluten, wheat, and dairy free, and they use vegetable capsules and amber glass bottles for optimal preservation. The brand's commitment to purity and effectiveness has made it a favorite among health-conscious consumers, particularly those seeking to prevent osteoporosis and maintain overall bone health. With a strong presence in the market, Solgar continues to innovate and meet the evolving health needs of its customers.

Rainbow Light

Rainbow Light is a prominent producer of calcium tablets, known for its high-quality dietary supplements that support bone health. Their Calcium with Magnesium and D3 tablets offer a two-to-one ratio of calcium to magnesium, along with 500 IU of vitamin D3, ensuring enhanced calcium absorption and utilization. These tablets are free from common allergens like gluten, wheat, milk, nuts, soy, eggs, fish, and shellfish. Rainbow Light's products are designed to provide daily bone density support, making them a trusted choice in the market. With a focus on health and wellness, Rainbow Light continues to be a leading brand in the calcium and vitamin D supplements sector.

GNC

GNC, a renowned brand in the health and wellness industry, stands out as a leading producer of calcium tablets, catering to the growing demand driven by increasing awareness of bone health and the risks of calcium deficiency. The adult calcium supplement segment, which GNC dominates, is expected to account for a 72.4% value share in 2024, reflecting the brand's strong market presence. With the global calcium supplement market projected to grow at a 4.8% CAGR from 2024 to 2034, GNC is well-positioned to capitalize on this trend. The brand's products are particularly popular in regions like the Asia Pacific, where government initiatives and rising disposable incomes are boosting consumer demand. GNC's commitment to using top-quality ingredients and its extensive marketing efforts further enhance its market standing.

New Chapter

New Chapter is renowned as one of the top producers of calcium tablets, known for its high-quality and organic ingredients. The brand's calcium supplements, such as the New Chapter Calcium Supplement, are popular for their bioavailable forms and holistic approach to bone health. For instance, their products often combine calcium with other essential nutrients like vitamin D, enhancing absorption and overall effectiveness. The adult calcium supplement segment, which New Chapter caters to, is expected to hold a significant market share, with a projected 72.4% value share in 2024. New Chapter's commitment to using natural and sustainable sources aligns with the growing consumer preference for health-promoting products.