21st Century Calcium Magnesium Zinc + D3, 90 Tablets

Product Overview

21st Century Calcium Magnesium Zinc + D3 combines three minerals with vitamin D3 for bone support, in a bottle of 90 coated tablets. The serving is 3 tablets, so the bottle is a 30-day supply. It is stated to be gluten-free, sugar-free and free from artificial flavours and sweeteners.

Ingredients / Specifications

Per serving of 3 tablets:

• Vitamin D3 (as cholecalciferol): 10 mcg (400 IU)
• Calcium (as calcium carbonate): 1,000 mg
• Magnesium (as magnesium oxide): 400 mg
• Zinc (as zinc oxide): 15 mg

Other ingredients: cellulose, croscarmellose sodium, maltodextrin.

Key Benefits

• Calcium is the main mineral in bones and teeth, and is also needed for muscle contraction and nerve signalling.
• Vitamin D3 helps you absorb calcium from the gut — without it, much of the calcium passes straight through.
• Magnesium contributes to bone mineralisation and normal muscle and nerve function.
• Zinc supports normal immune function and is involved in building bone tissue.

The listing also mentions sleep, mood and blood sugar. Those are a long way from what a mineral tablet can promise, so they are not repeated here. Enough calcium and vitamin D over a lifetime, with exercise, is part of keeping bones strong — that is the honest case.

How to Use

1. Adults: 3 tablets a day with a meal. Calcium carbonate needs stomach acid, so food helps it absorb.
2. The body absorbs calcium best in smaller amounts, so taking one tablet with each meal usually works better than all three at once.
3. Do not exceed the stated dose. Count the calcium you already get from milk, yoghurt and fish with bones.

Note: one line of the listing says “one to three” tablets a day, the supplement facts say three. Follow the bottle you receive.

Spacing From Medicines

Calcium, magnesium and zinc bind to certain medicines in the gut and stop them being absorbed. Keep at least 4 hours between this and thyroid medicine (levothyroxine), and at least 2 hours from antibiotics such as ciprofloxacin or doxycycline, osteoporosis tablets and iron supplements. A pharmacist can give you exact timings.

Who Should Be Careful

• Kidney disease: do not take extra magnesium or calcium without your doctor — the kidneys clear both.
• A history of kidney stones: ask your doctor before taking calcium supplements.
• Loose stools: magnesium oxide can cause them. The 400mg here is a little above the 350mg a day that US authorities set as the upper limit for supplemental magnesium; if you get diarrhoea, drop a tablet.

This Is a Supplement, Not a Medicine

A dietary supplement is a food product. It is not a medicine, it has not been through the testing a medicine goes through, and it does not diagnose, treat, cure or prevent any disease.

Supplement labels use health language — “supports”, “helps maintain”, “promotes” — precisely because they are not permitted to claim treatment. Read them that way. If a listing anywhere promises that a capsule will fix a medical condition, that promise is not one the product can keep.

What a supplement can honestly do is fill a gap in your diet. That is worth something, and it is a smaller thing than most packaging implies.

Talk to a Doctor First

Speak to a doctor or pharmacist before you start, particularly if you:

• take any prescribed medicine — supplements interfere with medicines more often than people expect
• are being treated for a heart, liver, kidney, thyroid or blood condition
• have diabetes
• are pregnant, trying to conceive, or breastfeeding
• have surgery or a dental procedure coming up

Never stop or reduce a prescribed medicine in order to take a supplement instead. That is the single most dangerous thing anyone does with a product like this, and it is what the marketing language quietly invites.

About the Imported Pack

This is an imported product. The label, the dose instructions and the ingredient panel are the ones printed for the market it was made for, and the wording may differ from a locally packaged version.

Follow the dose printed on the pack itself — it is the authority on its own contents — and check the expiry date when it arrives. If anything on the label is unclear, message us before you take it and we will read it to you.

Storage

• Keep the container tightly closed, somewhere cool and dry, out of direct sunlight.
• Do not store it in a bathroom. Heat and humidity break supplements down faster than anything else, and a Dhaka bathroom is the worst place in the house for them.
• Leave the desiccant sachet in the bottle. It is there to keep moisture out, not by mistake.
• Softgels and fish oils are best kept in a fridge in hot weather — they go rancid otherwise.
• Keep it out of reach of children.
• Do not use it after the expiry date, and throw it away if the capsules smell strongly off, have stuck together or changed colour.

Frequently Asked Questions

Is 400 IU of vitamin D enough?

It is a maintenance amount. Vitamin D deficiency is common in Bangladesh despite the sun, and if a blood test shows you are low, your doctor will prescribe more.

Can I take all three tablets at once?

You can, but spreading them over the day’s meals gives better calcium absorption.

Can I take it with my other supplements?

Check the labels for anything that appears in both — doubling a dose by accident is easy. If you are on prescribed medicine as well, ask a pharmacist. They do this check quickly and for free.

How do I check the pack is in date?

The expiry date is printed on the bottle or the base of the box. Check it as soon as your order arrives. If it is unreadable or close to expiry, message us and we will replace it.