21st Century Calcium Citrate Plus D3 Maximum - 630 mg Calcium, Bone Health Support, Easily Absorbable, Gluten Free, Non-GMO, Compare to Citracal +D3, 400 Tablets Review

Our scorecard

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

['This 21st Century product is a calcium citrate tablet supplement providing 630 mg of calcium plus vitamin D3 per serving, sold in a large 400 count bottle. Calcium citrate is generally described by makers as an easily absorbable form, and the maker notes this formula is positioned as an alternative to other well known calcium citrate plus D3 products on the market.', 'The company markets this tablet for bone health support, framed as a general wellness claim rather than treatment of any condition. The gluten free, non GMO label broadens who can reasonably use it, and at just over 18 dollars for 400 tablets, the cost per serving is competitive within the calcium tablet category. As with any supplement, checking in with a healthcare professional before starting is a reasonable step.', 'Buyer response is strong, with a 4.7 rating from 5,700 reviews and an estimated 2,000 units bought in the past month. That is one of the higher ratings among calcium tablets in this set, combined with a substantial review count, suggesting broad and consistent satisfaction.']

Specifications

Performance notes

Sold as a gluten free, non GMO tablet in a 400 count bottle, this calcium citrate formula provides 630 mg of calcium plus vitamin D3 per serving. The maker markets it for bone health support and positions it as an alternative to other established calcium citrate plus D3 tablets, giving shoppers a large supply at a competitive per serving cost.

What buyers say

A 4.7 rating from 5,700 reviews, combined with an estimated 2,000 units bought in the past month, points to strong and consistent buyer satisfaction. The high rating alongside a large review count suggests this tablet reliably meets expectations across a broad range of buyers.