BulkSupplements.com Calcium Citrate Powder – Calcium Supplement, High Bioavailable – Unflavored & Gluten Free, 4.5g per Serving, 250g (8.8 oz) (Pack of 1)

Best Form of Calcium at a Fair Price; As Good as Any
This seems to be a perfectly acceptable product. I actually purchased it for my puppies because growing puppies, like growing children, need lots of calcium. I haven’t taken it myself.I cannot speak to the purity of this product since I do not have the necessary laboratory equipment to analyze it, but it seems fine and is competitively priced. Like all powdered calcium, it’s very powdery and does tend to get all over everything so handle it carefully! Also, the fact that it has no flavor makes it easy to give to the puppies: I simply mix it with their food and they don’t seem to notice it at all.The only change that I would recommend would be to package the product in an airtight plastic bottle rather than in a plastic bag. This would make it easier to store and use, and would be neater. Of course, one could always transfer the calcium citrate to another container (carefully, so you don’t make a mess!).I do prefer calcium citrate to other forms of supplemental calcium. Even though it is less concentrated than calcium carbonate (you have to use more citrate than carbonate to get the same amount of calcium), it is more easily absorbed and does not cause the gastro-intestinal issues that calcium carbonate can cause. It doesn’t have the contamination that you can find in bone meal and dolomite either. As a matter of fact, calcium citrate and calcium lactate are the only forms of calcium that I would use or recommend to others.

High quality product, reasonably priced, good customer service.
If you take a magnesium supplement (which everyone should – 75-80% of the western world is deficient), you also need to take a calcium supplement to keep the proportions right. Your intake of calcium should be twice that of magnesium so this is the ratio in most calcium/magnesium capsules, but there are several problems with the buying it this way:1) Virtually all the calcium/magnesium combos use magnesium oxide because it’s cheap, but magnesium oxide has only a 4% absorption rate. Magnesium glycinate (which I also buy from BulkSupplements) is absorbed much better.2) Since the body needs calcium and magnesium in a 2:1 ratio, this is how the combos usually supply it. But most peoples’ diets contain much more calcium than magnesium – especially true if you eat a lot of dairy (as I do). Thus supplementing at 1:1 gets you closer to the ideal ratio. But I’ve never seen a combo supplement in this ratio, and the low absorption rate of magnesium oxide makes the listed ratio wrong, anyway. If you are taking calcium citrate (high absorption rate) in 2:1 ratio with magnesium oxide (very low absorption rate), you’re really just taking a calcium supplement.3) The calcium magnesium combos usually come in such large capsules that I gag on them. I’m not a good pill taker. I prefer to make my own capsules using a smaller size I can swallow. I don’t like taking lots of pills, but I like gagging even less. (I’ve tried mixing calcium powder into drinks, but it doesn’t dissolve.)4) Buying calcium and magnesium in bulk and making my own capsules (which is very easy with a capsule filler), is far cheaper than buying pre-filled capsules. So not only am I getting a superior supplement in every way by buying in bulk, it’s way cheaper.BulkSupplements calcium is high quality and reasonably priced. Plus the company has excellent customer service, responding to questions quickly and helpfully. Good product, good company.Since I eat a lot of foods with calcium, I supplement in a 1:1 ratio.

Superclean supplement with the zero additives.