Written by the Nveda editorial team · Reviewed by Dr. Sushmitha A R, BAMS, MD (Dravyaguna Vijnana) · Last reviewed 30 September 2026
Quick answer: Read the elemental calcium, not the salt weight. Calcium citrate is only about a fifth to a quarter elemental calcium by weight, so a 1,000 mg calcium citrate tablet supplies about 250 mg of elemental calcium (per Nveda's specification for Calcium Complex). Adults in India need about 1,000 mg a day in total from food and supplements (ICMR-NIN 2020), and food should provide most of it.
🥛 Why intake often falls short
National nutrition surveys have repeatedly found average calcium intake in India below recommended levels, especially in diets low in dairy. Oxalates in spinach and phytates in whole grains reduce how much calcium the gut absorbs. Low vitamin D also reduces absorption, so a blood test for 25-OH vitamin D is worth asking your doctor about.
💊 Calcium carbonate vs citrate
| Elemental calcium | How to take it | Suits | |
|---|---|---|---|
| Calcium carbonate | About 40% of the salt weight | With food (needs stomach acid) | Most adults; lowest cost per mg |
| Calcium citrate | About 21–25% of the salt weight | With or without food | People on acid-reducing medicines, older adults, sensitive stomachs |
Absorption is best in doses of about 500 mg elemental calcium or less at a time, so split larger daily totals (NIH ODS).
📋 What the Nveda Calcium Complex label lists
| Nutrient | Per tablet | Per day at label dose (1 tablet, twice a day) |
|---|---|---|
| Calcium citrate | 1,000 mg | 2,000 mg (about 500 mg elemental) |
| Vitamin D3 | 200 IU | 400 IU |
| Magnesium | 100 mg | 200 mg |
| Zinc | 4 mg | 8 mg |
| Vitamin K2 | 55 mcg | 110 mcg |
| Vitamin B12 | 1 mcg | 2 mcg |
- Two tablets a day supply about 500 mg of elemental calcium, roughly half of a 1,000 mg daily need. Food supplies the rest.
- Vitamin K2's role in bone is still being researched, and evidence on fracture outcomes is limited.
- Made for Nveda by Sai Healthcare (Solan, Himachal Pradesh), per the label.
- Rated 4.49/5 across 2,728 reviews on Judge.me (as of 30 September 2026).
⚠️ Interactions and cautions
- Levothyroxine: take it about 4 hours apart from calcium. Some antibiotics and bisphosphonates: ask your pharmacist about spacing.
- Kidney stones or calcium disorders: ask your doctor before using calcium supplements.
- Other calcium or vitamin D products: add up totals to avoid overshooting.
- Constipation is the most common effect. Water and fibre help, and citrate is often gentler.
- Too much calcium can cause nausea, thirst, frequent urination and fatigue. Stop and speak to a doctor.
✅ A checklist for comparing calcium supplements
- Elemental calcium per dose, not salt weight
- Form (carbonate or citrate) and how to take it
- Vitamin D3 in IU and what else is in the tablet
- Manufacturer and batch testing information
- Cautions for your health conditions and medicines
❓ FAQs
Which form of calcium suits older adults?
Calcium citrate is often preferred because it does not need stomach acid to absorb. Ask your doctor for your own dose.
How much calcium do adults need?
About 1,000 mg a day from food and supplements combined (ICMR-NIN 2020).
How do I take Nveda Calcium Complex?
The label says 1 tablet twice a day after a meal, or as directed by a physician.
Can I take calcium with vitamin D3?
Yes; vitamin D helps calcium absorption. Nveda's tablet already contains 200 IU D3.
Do calcium supplements cause weight gain?
They are not known to.
Nveda Calcium Complex
Calcium citrate with magnesium, zinc, D3, K2 and B12 per label. Ask a doctor about the right dose for you.
View Calcium ComplexFree doctor consultation📚 Sources
- NIH Office of Dietary Supplements: Calcium fact sheet
- ICMR-NIN. Nutrient Requirements for Indians, 2020.
- Nveda Calcium Complex pack label and product specification, accessed 30 September 2026
This article is general information, not medical advice. Nveda products are dietary supplements and are not intended to diagnose, treat, cure or prevent any disease. Talk to a doctor before starting any supplement, especially if you are pregnant, breastfeeding, under 18, or take regular medication.
