Page 1 - Reviews - 21st Century, Calcium Citrate + D3 Maximum, 75 Tablets - iHerb
Your preference has been updated for this session. To permanently change your account setting, go to My Account
As a reminder, you can update you preferred country or language anytime in My Account
> beauty2 heart-circle sports-fitness food-nutrition herbs-supplements pageview
Click to view our Accessibility Statement
}
Free delivery over £29.00
checkoutarrow
Supplements
Sports
Bath & Personal Care
Beauty
Grocery
Home
Baby & Kids
Pets
Brands A–Z
Health Goals
Deals
Bestsellers
Try
New

Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.8
Based on 21,499 ratings
18,592
2,238
490
102
77
Write a review
What customers say
(1,949)
 
Rating

Rating

Languages
English (UK)
Languages
Show auto-translated reviews(1,949)
Show reviews with images only
Review images
English (UK)
Translated reviews
iHerb Customer
Posted on Sep 6, 2025
United States
20
0
0
0
A quality supplement with strange smell and taste
Verified Purchase
A quality supplement, calcium citrate is a form that is excellently absorbed in the body, especially in combination with D3, so ingredients are excellent. The packaging is sufficient for 60 days. The tablets are large, not so easy to swallow, and have a strange smell and taste. I'll take them to support bone healing after surgery. Hope to see soon some improvements.
Auto-translated from English
iHerb Customer
Posted on Aug 30, 2025
United States
40
0
0
3
Verified Purchase
As prescribed by a doctor, I use this product. I like the form of calcium in the composition, it is citrate, which is well absorbed by the body. The ingredient composition contains vitamin D, which helps calcium to be absorbed. The tablets are easy to swallow and there are no problems with the gastrointestinal tract. The price is small, the dosage is good. The packaging is excellent. A high-quality and effective product.
Auto-translated from English
iHerbCustomer
Silver
Posted on Mar 29, 2026
Kazakhstan
149
70
5
12
Verified Purchase
⸻ 💇‍♀️ Is it good for hair? 👉 Minor direct effect • Calcium does not directly promote hair growth • But if there is not enough of it in the body → hair may become weak 📌 More important for hair: • Vitamin D3 • Omega-3 • Iron, biotin ⸻ 🦵 Benefits for legs (bones): 👉 Yes, very important • Strengthens bones • Good for joints, teeth, nails • Helps with pain or weakness in the legs
Auto-translated from Russian
ddf4a9c3-1a51-44af-a9d5-72416757d78d
iHerbCustomer
Posted on Feb 22, 2026
United States
17
20
2
5
Accepted
Verified Purchase
I took 21st Century Calcium Citrate Maximum + D3 (120 tablets) for several months and liked the combination of easily absorbed calcium citrate and vitamin D3. The quality is truly noticeable, providing bone support and overall well-being. The tablets are easy to add to your daily diet, absorb well, and don't cause any stomach discomfort. An excellent option for maintaining bone and joint health at an affordable price.
Auto-translated from Russian
6cdfd0d0-59ed-432d-9b61-517ba8c14523
Orz
Posted on Jun 9, 2026
Taiwan
40
67
9
295
The main ingredients are only calcium citrate and vitamin D3, and it does not contain high doses of the mineral magnesium...
Verified Purchase
Calcium maintains bone health, magnesium relaxes muscles, and vitamin D3 promotes calcium absorption and regulates immunity. While this product is named "Calcium Citrate Magnesium + D3," its "main active ingredients" are only calcium citrate and vitamin D3, omitting magnesium, a key nutrient. Although often translated as "Calcium Citrate Magnesium" in Taiwan, it lacks high-dose magnesium because the "Other Ingredients" section on the back of the product list contains trace amounts of magnesium silicate and magnesium stearate for tablet shaping and manufacturing. The amount of magnesium in these tablets is extremely small and insufficient to provide any magnesium supplementation, muscle relaxation, or sleep aid benefits. However, this extra-large calcium citrate + D3 tablet is primarily designed for efficient calcium supplementation, maintaining bone strength and dental health; it is less likely to cause gastrointestinal discomfort, can be taken on an empty stomach (no stomach acid required), and has a high absorption rate. This is purely my personal sharing of my experience using this "Calcium Magnesium Citrate + D3" product. The ingredients are suitable for all ages, and I hope it will be helpful to everyone… If you've read this review, please don't hesitate to give it a like to encourage me! ^^
Auto-translated from Chinese Traditional
405c3d03-e4b7-4c56-bb2d-f4d96f0866e4
e0bfdb67-1baf-42dc-a742-620ebe3eebe2
71329ca1-f3e7-46f9-8661-e5ef4871d6b6
EUGENE
Posted on Jun 16, 2026
Moldova, Republic of
98
83
124
96
Excellent calcium!
Verified Purchase
This supplement effectively replenishes calcium deficiency. The quality is good. The ingredients are good. The packaging is secure and has a convenient opening lid. There's virtually no taste. It strengthens bones, so the benefits are obvious. It improves well-being and quality of life! Suitable for all ages. The combination of calcium and vitamin D3 promotes better absorption in the body! Another great thing is the price!
Auto-translated from Russian
Iloveuscash
Posted on Jun 12, 2026
Taiwan
29
10
1
9
very good!
Verified Purchase
I've tried 4-5 different calcium supplements, and this is the only one I'm still using. It doesn't cause stomach upset, and the tablets aren't too big to swallow.
Auto-translated from Chinese Traditional
7ebc2aa4-fe6c-45b7-a942-7cf31145235d
ValeriiaHolieva
Silver
Posted on May 25, 2026
Ukraine
102
15
0
40
I recommend it
Verified Purchase
21st Century Calcium Citrate + D3 Maximum is a good calcium supplement. I liked that it contains calcium citrate, which is usually better absorbed. The tablets last a long time, and the vitamin D3 in the composition is a big plus. I took it comfortably, without any unpleasant sensations from the stomach.
Auto-translated from Ukrainian
iHerbCustomer
Gold
Posted on Apr 20, 2026
Kazakhstan
457
3
0
36
21st Century Calcium Citrate and Vitamin D3, 120 Tablets
Verified Purchase
I needed a simple and affordable calcium and vitamin D3 complex, and this one was a perfect fit. The tablets are good quality, and the packaging is generous. The ingredients are clear and free of unnecessary components. The ingredients are honest and practical. The benefits for me are the convenience of daily use and the ability to cover my basic needs with one product. For a man, this is a good and easy-to-use option for everyday use. The large bottle is also a plus. Overall, a good purchase.
Auto-translated from Russian
iHerbCustomer
Gold
Posted on Apr 20, 2026
Kazakhstan
457
3
0
36
21st Century Calcium Citrate and Vitamin D3, 75 Tablets
Verified Purchase
I chose this product because of the calcium citrate form and the added vitamin D3. The tablets are of decent quality and easy to take. The ingredients are clear and uncluttered. The ingredients are carefully selected, and everything seems honest. The benefit for me is the convenience of getting important nutrients in one product. For a man with an active lifestyle, bone and overall health support is always important. The packaging is compact, making it easy to take with you. Overall, it's a good and practical supplement.
Auto-translated from Russian