I have no problem with the product .
Can only hope it provides as stated.
Pricey but wait for sales

This calcium pill works wonders for me. I feel more energized, and my bones feel stronger since I started taking it. It's easy to swallow, and I've noticed a positive difference in my health. Highly recommended

This particular supplement was recommended by my doctor. I gave only three stars for swallowing ease because the pills are on the larger side, but well worth the effort. I gave five stars for absorbency because the body can actually absorb this product much better than some other similar preparations. A little more expensive but, again...worth it.

UPDATE
Best calcium supplement on market. My calcium level are finally where my doctor wants. I have no trouble taking these 4x per day.

Unlike others there is no aftertaste (common in other similar plant-based capsules), very easy to swallow and effective (confirmed by blood tests). This is the reason why I changed rating from 4 to 5.

I developed severe osteoporosis resulting in multiple fractures of my shoulder, ankle and concurrent wrist and femur (I was returning home from the hospital after knee replacement surgery and fell getting out of the car despite using a walker). I ignored a diagnosis of osteopenia 20 years ago PLEASE pay attention and avoid my path!

My review is based on personal experience and advice from endocrinologists at Yale Medical Center and Mayo Clinic, an orthopedic surgeon at Hospital for Special Surgery in NYC and a rheumatologist at John Hopkins.

I recommend this product after using this product for 6 months at 4 pills/day =1200 mg total calcium (NOT the recommended dose on bottle).
My calcium levels are only slightly below the recommended range. But much better than the consistently very low levels of calcium found (after 6 years) trying other brands containing calcium carbonate. Supplements contain different sources of calcium. The calcium in this product is from plant, specifically a red algae. This form is readily absorbed with or without food. You can also find synthetic calcium as a salt such as calcium citrate, maleate or carbonate. The carbonate is found in lower priced brands since it is more cheaply manufactured - and very difficult to absorb - than say calcium citrate which is more expensive.

Bottom line, to be effective, any calcium supplements must include:
*Absorbable calcium (plant based or synthetic)
*vitamins D and K and
* be absorbed in the gut at no more than 400 mg per dose.

This is important - You must have absorbable calcium (from plant or algae or as a different calcium salt than the carbonate salt which lower priced brands usee and at a dose of no more than 400 mg/3x per day.
In addition to being impossible to swallow, the 1200 dose just isn't absorbed by the gut - just wasting $- believe me from personal experience and from specialist advice (whose research have proven this). In addition too much calcium is harmful in addition to being constipating.
Also remember that this disease requires a multi prong approach drug +diet +excersize +Supplemental calcium.
Good luck and hope this helps you.

only taking for short time but it got some good review