01 / THE DETAILS

What’s inside this formula?

Nature's Bounty’s Calcium Magnesium Zinc with Vitamin D3 is listed here in the calcium collection. This article looks at the selected 100 coated caplets pack, then puts its ingredients into context.

FROM THE MANUFACTURER’S LABEL

Per 3 caplets: vitamin D3 600 IU (15 mcg), calcium 1,000 mg, magnesium 400 mg and zinc 25 mg. Manufacturer lists 33 servings per bottle.

Check the original label ↗

Calcium provides structure to bones and teeth and participates in muscle and nerve function. Food intake is the starting point when considering a supplement. A compound such as calcium citrate or carbonate contains only a proportion of calcium, so compare the declared elemental amount and serving size.

The pack details above come from the manufacturer. Ingredient research below does not establish the effects of this exact product or independently verify its contents.

Three caplets define the listed amounts

The manufacturer table lists 1,000 mg calcium from carbonate and gluconate, 400 mg magnesium from oxide and gluconate, and 25 mg zinc from gluconate and citrate. Vitamin D3 adds 600 IU, equivalent to 15 mcg. Directions allow adults one to three caplets daily with a meal; the table describes three.

Read the magnesium contribution before stacking

At three caplets the supplemental magnesium amount is above the NIH adult 350 mg daily upper limit for supplements and medicines unless a healthcare professional advises otherwise. This limit excludes magnesium naturally present in food. Avoid automatically combining this serving with a separate magnesium supplement, and check medication timing.

Pack and evidence limits

The licensed photograph shows the 100-caplet bottle with Vitamin D3 on its front. The current manufacturer front image omits that line, while its Supplement Facts table explicitly includes 600 IU D3. The table also displays legacy Daily Value percentages, which are not reproduced here. Check the purchased panel for changes; the mineral label and osteoporosis-related marketing do not establish a trial result for this particular product.

02 / BENEFITS, IN PERSPECTIVE

Where might it be useful?

01

Bone maintenance

Adequate calcium is one part of maintaining bones alongside vitamin D, activity and other aspects of care.

02

Normal signalling

Calcium is needed for muscle contraction, nerve signalling and other normal body processes.

THE EVIDENCE LENS

What the research can — and cannot — tell us

Calcium is essential, but adding more than needed does not guarantee stronger bones. Product comparisons should account for food intake, the number of tablets per serving and any vitamin D or magnesium included. Evidence about calcium cannot automatically validate every combination formula.

03 / A CLOSER LOOK

What deserves your attention?

The 400 mg magnesium serving exceeds the NIH adult 350 mg daily upper limit for magnesium from supplements and medicines unless advised by a clinician; diarrhea and cramping can occur. Ask a pharmacist about spacing from antibiotics or bisphosphonates. Manufacturer advises medical review with pregnancy, nursing, medication use or medical conditions.

Suitability comes before strength

Discuss supplements with a clinician if you have kidney disease, kidney stones or use medicines that interact with calcium. Larger doses may cause digestive problems or exceed your needs.

Dietary details for this product

Dietary status not confirmed Current manufacturer text lists D3, mineral salts, vegetable cellulose, titanium dioxide colour and vegetable magnesium stearate. D3 origin and whole-formula vegetarian or vegan suitability are not confirmed; vegetable excipients alone do not establish dietary suitability.

A dietary label and an allergy assessment answer different questions. Check every ingredient, the capsule or softgel materials and the allergen statement on the pack you receive. If you take medicines, have a health condition, are pregnant or are choosing for a child, discuss the full formula with a qualified clinician.

04 / YOUR NEXT STEP

Make the comparison meaningful.

  1. Match the exact version.Look for Nature's Bounty · Calcium Magnesium Zinc with Vitamin D3 and the 100 coated caplets pack. A similar name or bottle can contain a different strength, blend or serving.
  2. Compare like with like.Read the serving size alongside the active ingredient amount. Capsule count, compound weight and total blend weight can describe different things. Use the label notes above to see what matters for this formula.
  3. Check the seller and final cost.Review seller identity, expiry, batch details and any Indian import information. Compare the final delivered price only after matching the formula. Prices and stock are checked on the retailer’s site.

Keep the label beside the decision.

Open the complete product profile for its source, dietary notes and available shopping destination.

Open product details ↗
Is this an endorsement or a medical recommendation?

No. This is an editorial guide to a selected product and its ingredient context. We have not independently tested this bottle or established a clinical benefit for this exact formula. A product’s inclusion is not a recommendation that everyone should take it.

Does Proof & Price earn from shopping links?

Some product-profile links are paid links and are labelled. As an Amazon Associate we earn from qualifying purchases. Manufacturer source links are provided for checking the label. Read our affiliate disclosure.

05 / FOLLOW THE SOURCES

Read, check, decide.

Product label reviewed 2026-10-29. Ingredient context reviewed 2026-10-26. This article has not received independent clinical review. Packaging and formulas can change; the current pack takes precedence.

  1. Nature's Bounty · Selected product and label ↗
  2. NIH Office of Dietary Supplements · Calcium ↗
  3. Additional ingredient evidence and safety ↗