Introduction
You might be eating right, staying active, and doing your best, but still wondering if it’s enough for your bones.
Calcium is an essential mineral for maintaining strong bones and overall health. As we age, calcium loss is silent and gradual. And for many people, diet alone may not meet the body’s growing needs, especially for women post-menopause or anyone with gut absorption issues.
Infact, 25 million Indians are at risk of osteoporosis due to low dietary calcium intake. Studies also show that over 60% of postmenopausal women in India are calcium-deficient, increasing their risk of fractures and bone loss. This means that one in three women and one in five men over the age of 50 may experience an osteoporotic fracture.
That’s where calcium supplements come in. But with so many brands and confusing labels, it can be hard to know which one to trust.
This guide breaks it all down—what your body actually needs, the types of calcium available, and our top picks to support stronger bones and better long-term health.
Understand Your Calcium Needs
| Factor | Recommendation |
| Age & Gender | – Adults 19–50: 1,000 mg/day – Women over 50: 1,200 mg/day – Men over 70: 1,200 mg/day |
| Dietary Sources | Include calcium-rich foods like dairy, leafy greens, canned fish with bones, and fortified products |
| Upper Limit | – Adults 19–50: Do not exceed 2,500 mg/day – Adults 51+: Do not exceed 2,000 mg/day |
| Vitamin D | 600–800 IU/day to support calcium absorption |
Why Calcium is Essential for Stronger Bones and Overall Health
Calcium is the most abundant mineral in the body, primarily stored in bones and teeth. It plays a crucial role in building and maintaining strong bones, as well as supporting various bodily functions. Calcium is essential for muscle movement, nerve function, blood vessel operation, and hormone release. Adequate calcium intake helps prevent conditions like osteoporosis, rickets, and osteomalacia, ensuring overall bone health and reducing the risk of fractures. By prioritising calcium in your diet and supplementation routine, you can support your bones and overall health throughout your life.
Types of Calcium Supplements
Calcium supplements come in various forms, each with unique absorption characteristics and potential side effects. The two main types are calcium carbonate and calcium citrate.
- Calcium carbonate is the most affordable and widely available form, containing 40% elemental calcium. It is best absorbed when taken with food and is commonly found in over-the-counter antacids.
- Calcium citrate is more expensive but contains 21% elemental calcium. It is well-absorbed on an empty or full stomach and is recommended for individuals with low stomach acid, irritable bowel syndrome, or those taking acid blockers.
Other less common forms of calcium supplements include:
- Calcium gluconate
- Calcium lactate
- Calcium phosphate
- Calcium sulphate
- Calcium ascorbate
- Calcium microcrystalline hydroxyapatite
While these forms are available, they typically have lower calcium content and offer no specific advantages compared to calcium carbonate and citrate. When choosing a calcium supplement, it is essential to consider several key factors to ensure you select a product that meets your needs and minimises potential risks.
Key Factors to Consider When Choosing Calcium Supplements
To make an informed decision when selecting a calcium supplement, keep the following factors in mind:
- Quality and Purity: Look for the word “purified” on the label to ensure the product meets quality standards.
- Elemental Calcium Content: Check the Supplement Facts label to determine the amount of elemental calcium in each serving, as this is the actual amount of calcium your body can absorb.
- Absorption and Digestion: Calcium carbonate is best taken with food, while calcium citrate can be taken on an empty or full stomach. Split doses of 500 mg or less at a time to improve absorption and reduce side effects like gas, bloating, and constipation.
- Potential Interactions and Side Effects: Be aware of interactions with medications such as antibiotics, iron pills, and blood pressure medications. Consult your doctor or pharmacist. Monitor for side effects like constipation, hypercalcemia, and decreased absorption of other minerals like iron and zinc.
- Additional Nutrients: Some supplements may also contain vitamin D or other minerals. Ensure these align with your nutritional needs and health status.
- Cost and Form: Consider the cost and the form of the supplement (tablets, capsules, chews, liquids, powders) based on your personal preferences and needs.
Top 10 Best Calcium Tablets for Bone Health
Maintaining strong and healthy bones is essential for overall well-being, and calcium supplements can play a crucial role in achieving this goal. To help you make an informed decision, we have compiled a list of the top 10 best calcium tablets for bone health.
1. Shelcal Tablet
Shelcal 500 mg/250 IU Tablet is a well-balanced calcium supplement that combines calcium carbonate with vitamin D3. This combination enhances calcium absorption and promotes overall bone health, making it an excellent choice for individuals looking to maintain strong bones.
2. Cipcal Tablet
Cipcal 500 mg Tablet is a straightforward calcium supplement containing calcium carbonate and vitamin D3. Vitamin D3 helps enhance the absorption of calcium and phosphorus, ensuring the body’s optimal use of these minerals. Remember to take this supplement with food to maximise its absorption.
3. Shelcal XT Tablet
Combines calcium, vitamin D3, vitamin B12, folic acid, and vitamin B6 to boost bone density, nerve health, and energy levels. It is designed to support calcium absorption, manage deficiencies, and strengthen bones.
4. Calcigen Total Tablet
A blend of calcium, vitamin D3, and minerals, Calcigen Total strengthens bones, supports muscle function, and improves calcium absorption. Ideal for those with low calcium levels or bone density issues, it is a valuable daily supplement for adults concerned with maintaining strong bones and teeth.
5. CCM (GSK) Tablet
This supplement combines calcium carbonate, vitamin D3, and folic acid, enhancing bone density and joint health while optimising calcium absorption. CCM is particularly helpful for those with calcium deficiency or osteoporosis risk, supporting overall bone strength and muscle function in a convenient daily dose.
6. Cipcal HD IU Tablet
Cipcal HD 500 mg/500 IU Tablet stands out from other calcium supplements by providing a higher dose of vitamin D3. This increased vitamin D3 content is particularly beneficial for individuals with vitamin D deficiencies or those who have limited exposure to sunlight, as vitamin D plays a crucial role in calcium absorption and bone health.
7. Ostoshine Tablet
Ostoshine Tablet is a well-formulated calcium supplement that combines calcium carbonate, vitamin D3, and magnesium. The inclusion of magnesium supports bone mineralisation and helps maintain a healthy bone matrix, making this supplement an excellent choice for those seeking to optimise their bone health.
8. Caldikind Plus IU Capsule
With calcium, omega-3, and folic acid, Caldikind Plus supports bone health, muscle function, and optimal calcium absorption. It is especially beneficial for individuals at risk of calcium deficiency or with joint issues, providing balanced support for bones, joints, and overall health.
9. Bio-D3 Plus mcg Capsule
Bio-D3 Plus Capsules combine calcium and vitamin D3. They are essential for maintaining healthy calcium and vitamin D3 levels, particularly during deficiencies. This supplement supports bone health by aiding calcium absorption in the intestines and promoting bone mineralisation, making it beneficial for individuals with osteoporosis or at risk of calcium deficiency.
10. Shelcal HD IU Tablet
Shelcal HD 500 mg/500 IU Tablet is another high-quality calcium supplement that combines calcium carbonate with a higher dose of vitamin D3. This increased vitamin D3 content makes it an excellent choice for individuals with vitamin D deficiencies or those who require extra support for calcium absorption and bone health.
Ayurvedic Calcium Supplements: Natural Alternatives
Ayurvedic Calcium Sources: Do They Work?
Ayurveda uses natural calcium sources like shankh bhasma, coral calcium, pearl (mukta), and herbs like asthishrikhla (Cissus quadrangularis) and arjuna to support bone health.
These are often used in traditional preparations alongside shankh, kapard, Godanti, coral, pearl, and herbs like asthishrikhla, shatavari, shigru, shilajit, amla, giloy, and sesame seeds to improve absorption and balance metabolism.
Ayurvedic calcium is considered gentler on the gut and is preferred by those looking for holistic bone support. However, clinical evidence varies, so always consult a qualified Ayurvedic or medical practitioner.
How to Take Calcium Supplements for Best Results
To get the most out of your calcium supplements, keep these guidelines in mind:
- Take calcium supplements with meals to enhance absorption. Avoid taking them at the same time as iron supplements, as this can reduce absorption.
- Follow the recommended dosage, typically 500-700 mg per dose, taken 2-3 times a day.
- Taking calcium with vitamin D can enhance its effectiveness, particularly for maintaining bone health and preventing fractures.
| Quick Recipe: Start your day with a delicious calcium-rich breakfast by making a creamy Greek yoghurt parfait. Layer 200 g of Greek yoghurt with a handful of fresh berries, such as blueberries or strawberries, and sprinkle with a tablespoon of chia seeds for added texture and nutrients. Top with a drizzle of honey for sweetness and a sprinkle of granola for crunch. Enjoy this nutritious parfait alongside a glass of fortified orange juice to further boost your calcium intake. |
Potential Side Effects and Precautions
Although calcium supplements are generally well-tolerated, there are some potential side effects and precautions to keep in mind:
- Constipation, gas, and bloating are common side effects of calcium supplements.
- Calcium can interact with certain medications, such as antibiotics and blood thinners.
Who Should Avoid Calcium Supplements?
Not everyone benefits from extra calcium. You may need to avoid supplements or take them cautiously if you have:
- Kidney stones or a history of hypercalcemia (very high levels of calcium)
- Certain heart conditions (as high calcium intake has been linked to arterial calcification in some studies)
- Sarcoidosis, a condition that increases vitamin D or calcium levels naturally
As always, consult with your doctor or a qualified healthcare provider before starting any new supplement regimen to ensure it aligns with your specific health needs and goals.
Lifestyle Tips to Improve Calcium Absorption
- Get 15–30 minutes of sunlight daily to maintain vitamin D levels
- Include weight-bearing exercises like walking or strength training to boost bone density
- Limit caffeine, alcohol, and high-sodium diets, which can increase calcium loss
- Space out calcium from iron or thyroid medications to prevent absorption issues
Expert Quote
“You don’t have to wait for a fracture to start thinking about your bone health. If you’re over 40, especially post-menopause, it’s worth checking your calcium and vitamin D levels yearly—even if you feel fine.”
-Dr Lakshmi Vaswani
Frequently Asked Questions (FAQs)
Calcium supplements may be necessary if your diet lacks sufficient calcium, particularly for those at risk of osteoporosis, vegans, or individuals with certain health conditions.
Men and women aged 50 and younger require 1,000 mg of calcium daily, while women over 50 and men over 70 need 1,200 mg.
Yes, calcium can be obtained through dairy products, fortified nondairy milk, sardines, salmon, nuts, seeds, tofu, kale, legumes, and fortified juices and cereals.
Calcium citrate and calcium carbonate are commonly recommended; calcium citrate is better for those with low stomach acid, while calcium carbonate is often less expensive.
Dairy products like milk, cheese, and yoghurt are among the best natural sources of calcium for bones and overall health.
Both are essential; calcium is critical for bone health, while vitamin D is necessary for effective calcium absorption. They should be taken together for optimal benefits.
Yes, a serum calcium test can measure total calcium in your blood, but it doesn’t always reflect your bone calcium status. For a full picture, doctors may also look at vitamin D levels, parathyroid hormone (PTH), and bone density scans (DEXA).
Many people assume calcium is only important after age 50, but your peak bone mass is built by your early 30s. If your diet lacks calcium or you’re at risk due to family history, hormonal changes, or a restrictive diet (like veganism), supplementation may be helpful even earlier. Pregnant and breastfeeding women may also need extra calcium based on their doctor’s advice.
References
- Plantz, M. A., & Bittar, K. (2024, July 19). Dietary calcium and supplementation. StatPearls – NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK549792/
- Plantz, M. A., & Bittar, K. (2024, July 19). Dietary calcium and supplementation. StatPearls – NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK549792/
- Reid, I. R., Bristow, S. M., & Bolland, M. J. (2015). Calcium supplements: benefits and risks. Journal of Internal Medicine, 278(4), 354–368. https://doi.org/10.1111/joim.12394
- Cormick, G., & Belizán, J. M. (2019). Calcium intake and health. Nutrients, 11(7), 1606. https://doi.org/10.3390/nu11071606
- Michos, E. D., Cainzos-Achirica, M., Heravi, A. S., & Appel, L. J. (2021). Vitamin D, calcium supplements, and implications for cardiovascular health. Journal of the American College of Cardiology, 77(4), 437–449. https://doi.org/10.1016/j.jacc.2020.09.617