Customer Ratings & Reviews

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4.7

Based on 10,891 ratings

8,889

1,315

469

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What customers say

Customers highly appreciate the calcium plus vitamin D3 supplement for its quality and effectiveness in improving bone health. Many users report noticeable improvements in overall health, increased energy levels, and better digestion after a few weeks of use. The product is praised for its reasonable price, good packaging, and sufficient dosage with each tablet containing 1000 mg of calcium. However, some customers find the tablets large and difficult to swallow, suggesting they might need to be cut in half. Despite this, the supplement is considered an essential part of daily routines for many, with repeat purchases indicating high satisfaction. Users also commend the ease of taking just one pill a day and recommend it for maintaining strong bones.

Review highlights

(10,768)

iHerb customer

Posted on Mar 29, 2025

Canada

Great Value & Effective Calcium Supplement!

Verified purchase

I’ve been taking 21st Century Calcium Plus D3 for a while now, and it’s an excellent supplement for supporting bone health and overall wellness. Each tablet provides a solid dose of calcium and vitamin D3, which work together to help maintain strong bones and proper calcium absorption. One thing I appreciate is that the tablets are easy to take—not too big and don’t have an unpleasant aftertaste. The affordable price and quality ingredients make this a great value compared to other calcium supplements on the market. Since incorporating this into my routine, I’ve noticed improvements in bone strength and joint comfort, and I feel more confident that I’m getting the essential nutrients I need, especially since I don’t always get enough calcium from my diet. Highly recommended for anyone looking for a reliable and budget-friendly calcium supplement!

iHerb customer

Posted on Mar 4, 2025

Canada

Verified purchase

21st Century Calcium Plus D3 is a supplement designed to support bone health by combining two essential nutrients—calcium and vitamin D3. Calcium is a key mineral for building and maintaining strong bones, while vitamin D3 helps enhance calcium absorption and supports overall bone density. This product is a great option for individuals looking to strengthen their bones and ensure they’re getting the right nutrients for skeletal health. 21st Century Calcium Plus D3 is an affordable, reliable option for anyone looking to support their bone health. The combination of calcium and vitamin D3 provides essential nutrients for maintaining strong bones and improving calcium absorption. It’s a simple, easy-to-take supplement that can be easily added to your daily routine. While the large tablets and the potential for mild stomach discomfort might be minor downsides, the overall benefits for bone health, as well as the affordable price point, make this product a solid choice for most individuals. If you’re looking for a straightforward calcium and vitamin D3 supplement to support your skeletal health, 21st Century Calcium Plus D3 is definitely worth considering.

mkmkmk

Posted on Feb 15, 2026

Bahamas

Huge Pills, but worth it

Verified purchase

As I get older, I want to improve my bone health, so I ordered this supplement. I feel like I'm doing something good for my body that will protect me as I age. There are a good amount of pills in the package. I took off a star because the pills are massive-the size of my eye! Still, calcium is important so it's worth it.

Lisaaa

Silver

Posted on Jan 27, 2026

Kazakhstan

146

Great!

Verified purchase

I like this vitamins! The package and size is good (big enough for long term use). The taste is good and I like the clear formula. Quality as always good!

Shakera

Posted on Nov 9, 2025

United Kingdom (UK)

141

100

Verified purchase

These are good quality ingredient calcium pills I like it. Have a pleasant smell and doesn’t taste bad. They’re super supplements and definitely recommend if you’re looking for a good calcium supplement to improve your health if you’re deficit or want to build bone health, it has lots of benefits. Well packaged and good for all age groups

iHerb customer

Posted on Nov 4, 2025

Israel

good

Verified purchase

I’ve been taking these calcium tablets for about a month now, and I can already feel a noticeable difference. My nails feel stronger, and I’ve experienced less muscle cramping after workouts. The tablets are easy to swallow and don’t leave any unpleasant aftertaste, which is a big plus for me.

iHerb customer

Posted on Oct 11, 2025

United Kingdom (UK)

I love it!

Verified purchase

Not only helps you relax, but it's so affordable, that's amazing! I bought so many products, so happy! Quality product, I am above 30, so it's important to take care of myself in this age. I use calcium with vitamin D3 as well. Package is good, this is good for our bones.

iHerb customer

Posted on Oct 4, 2025

Bosnia and Herzegovina

21st Century, Calcium Plus D3

Verified purchase

Quality and ingredient good, a lot of Calcium in one tablet, good for any age. Package is big, 90 tablets, we have a lot of benefit for our bones. This supplement is good to improvement of uor health. Combination of Calcium and D3 is very important. Taste is ok, and I reccomend for people with Calcium deficiency.

iHerb customer

Posted on Sep 21, 2025

Philippines

Calcium plus D3

Verified purchase

My parents and me are taking this supplement for a while now, it’s a combination of Calcium plus D3. We can say that it’s good and feel improvements. At a reasonable price, quality is very good, packaged well, and taste is okay. Both my parents are aged 60 above and I am 37. We can really say that this benefits our bones.

Maha

Gold

Posted on Nov 19, 2025

Saudi Arabia

464

Too big for me

Verified purchase

They are good with high dose but couldn’t swallow it easily so I recommend only to those who dont have that problem My sister said they are really good for her

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