Table of Contents (7)
The Quick Comparison Table
Shelcal 500 (Torrent): Calcium carbonate 1250mg (500mg elemental) + Vitamin D3 250 IU. ₹85/strip of 15. Calcimax Forte (Meyer): Calcium carbonate 625mg (250mg elemental) + Cal-citrate + D3 200 IU + magnesium + zinc + soy isoflavones. ₹110/strip. CCM (Cadila's Carbonate-Citrate-Magnesium): Calcium citrate-maleate 1250mg (500 elemental) + D3 400 IU + magnesium. ₹95/strip. Cipcal 500 (Cipla): Calcium carbonate 500mg elemental + D3 250 IU. ₹60/strip. What matters: elemental calcium (the real usable amount), D3 dose, form (citrate absorbs better), and cost. Shelcal is the market leader by default, not because it's technically best.
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Carbonate vs Citrate - The Real Difference
Calcium carbonate: Cheaper, 40% elemental calcium content, needs stomach acid to absorb - must take WITH FOOD. Can cause gas, constipation. Examples: Shelcal 500, Cipcal 500. Calcium citrate: Pricier, 21% elemental content (so you need more mg to get same amount), absorbs with or without food, no gastric acid needed, less gas. Better for: elderly (low stomach acid), people on PPIs (Pan 40 blocks carbonate absorption), post-surgery with weak digestion. Examples: CCM (mixed form), Calcitas (pure citrate). For young Indians with strong stomach: carbonate is fine. Over 60 or on PPI: citrate wins.
How Much Calcium You Actually Need
Adults 19-50 years: 1000mg/day elemental. Women 51+ and men 71+: 1200mg/day. Pregnancy/breastfeeding: 1000-1200mg. Teenagers: 1200mg. From food (target first): 1 glass milk (250ml) = 300mg, 1 cup curd = 250mg, 100g paneer = 200mg, 100g ragi = 300mg, 100g sesame seeds = 950mg, 1 cup palak = 100mg. Typical Indian diet gives 400-600mg - insufficient especially for women who eat less dairy or post-menopausal. Supplement difference: 1 tablet Shelcal 500 = 500mg - top-up, not replacement. Dividing into 2 doses improves absorption (body absorbs max 500mg at once).
When You Actually Need a Calcium Tablet
Yes-you-need-it: Post-menopausal women (bone loss accelerates), pregnant/breastfeeding women, osteoporosis diagnosed on DEXA scan, chronic kidney disease, hyperparathyroidism, post-bariatric surgery, vegans without fortified foods, lactose-intolerant people avoiding dairy, elderly with low appetite. Maybe-useful: Young women not eating enough dairy/leafy greens. Weight-training-heavy gym goers. Chronic PPI users. Skip if: Young Indian eating balanced diet with 2 glasses milk/curd daily - waste of money, potential kidney stones. Test before long-term: Serum calcium, 25-OH Vitamin D, urine calcium (spot), PTH level if bone density low.
The Vitamin D Angle - Why Every Calcium Has It
Without Vitamin D, you absorb only 10-15% of calcium. With adequate D, absorption jumps to 30-40%. That's why every calcium tablet has some D3. Problem: Most have only 200-400 IU, but Indians are chronically D-deficient (70-80% population) and need 1000-2000 IU daily to reach normal. Solution: Shelcal/CCM/Calcimax give calcium + minimum D3; add separate D3 - Calcirol 60000 IU weekly for 8 weeks, then monthly. Or Uprise 60000 (₹35/sachet). Without adequate D3, your calcium tablet is half-wasted. Get Vitamin D blood test (₹800-1200) once; supplement based on level (< 20 severe, 20-30 insufficient, 30-50 optimal, > 100 toxic).
What's likely causing YOURS? Ask AISide Effects & Who Should Avoid
Common: Constipation (25%), gas/bloating (20%), nausea (5%). Prevention: drink more water, eat fiber, take with magnesium (many Indian calciums combine). Severe: Kidney stones (1-3% long-term users, worse if dehydrated + high animal protein diet), hypercalcemia (too high calcium - confusion, weakness, thirst). Don't take calcium if: Diagnosed hypercalcemia, known kidney stones with absorptive hypercalciuria, sarcoidosis (D3 hypersensitive), parathyroid tumor, severe kidney disease (need phosphate binders instead). Drug interactions: Thyronorm (take 4 hrs apart), iron tablets (2 hrs apart), antibiotics cipro/tetracycline (2 hrs apart), biphosphonates (1 hr apart).
Will YOU face these? Check against your profileBest Calcium by Life Stage
Pregnant woman: Calcimax Forte (has cal-citrate + magnesium + Vit D3 + folate) - good for fetal bone + prevents pregnancy constipation from pure carbonate. Young post-menopausal woman (50-60): Shelcal 500 + Calcirol 60000 weekly + daily 20 min sun + weight training. Elderly on PPI (>65): CCM or Calcitas (citrate form works without stomach acid). Osteoporosis diagnosed: Calcium + D3 + doctor-prescribed bisphosphonate (alendronate, risedronate). Lactating mother: Calcimax Forte or CCM. Vegan/lactose-intolerant: Calcium citrate + high-dose D3 (1000 IU daily). Kids with low calcium intake: Calcium syrup (Ostocalcium) - don't exceed age-based dose.
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Not medical advice
This article is for informational purposes only. Always consult a qualified doctor before making health decisions. For emergencies, call 112.
What others asked
Your case may be different · ask AI
Split dose works best if you take 2 tablets/day: one at breakfast, one at dinner. Single dose: with biggest meal. Don't take alongside milk/dairy/tea/coffee - tannins + existing calcium in milk reduce absorption. Night-only dose before bed: fine, just 2 hours after last meal; may help some people with night leg cramps.
Long-term high-dose (>1500mg elemental) + low water intake + high animal protein diet = stone risk. Right dose + 3L water daily = safe. Calcium FROM FOOD actually REDUCES stone risk (binds oxalate in gut). Calcium tablets only risky if overdosed. Don't take 2 tablets daily 'for better bones' - 1 is enough after diet gaps are met.
Carbonate (Shelcal, Cipcal): With food always - needs stomach acid. Citrate (CCM, Calcitas): Any time; food not required. That's the whole difference. Elderly / PPI user: citrate. Young healthy: carbonate with meal is cheaper and works.
Yes - commonly prescribed from 2nd trimester. Pregnancy needs 1000-1200mg calcium daily; diet often falls short. Calcimax Forte is often preferred in pregnancy (has more D3, magnesium, folate). Tell gynae; don't self-start. Continue through breastfeeding.
Depends on reason. Post-menopausal: often indefinite with periodic DEXA scans. Pregnancy: till 3 months post-delivery. Osteoporosis: long-term with bisphosphonate. Young vegan: as long as diet gap exists - fix diet first. Annual calcium + Vit D + PTH + bone density (DEXA after 60): guides duration.
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