U.S. Doctors' Clinical Calcium, Magnesium + Vitamin D3 for Bone, Muscle, and Nerve Support (120)...

This made-in-USA supplement comes in a nice-looking colorful box, with a white bottle inside. The generous expiration date was printed on both the bottom of the box and the bottom of the bottle. The lid had a perforated plastic seal around the outside, and a peel-off inner seal. The tablets are well-coated, not chalky at all. They enclosed a small wad of cotton (could've used a larger one) to try to reduce rattling, and a small dessiccant packet.

U.S. Doctors' Clinical, also known as Doctor's Clinical Inc, has been in business since 2011 and is located in California. Their website says "All U.S. Doctors Clinical products are made with premium-sourced ingredients to ensure maximum purity and effectiveness. We offer products manufactured in a state-of-the-art facility state licensed and FDA-registered. Our facility has been certified with the cGMP (Good Manufacturing Practices) seal and deemed compliant by independent quality-control auditors such as NPA, NSF, and UL." That doesn't say anything about the location of manufacture, but the label on this product does specify, "Manufactured in U.S.A. of imported and domestic ingredients." The label also says it is "distributed by" Doctors' Clinical, not manufactured by, so they appear to be using a US-based contract manufacturer. The ingredients are comparable to other brands of calcium supplements I've used. I received a bottle with nearly 3 years till expiration.

I take these everyday and have noticed a significant improvement. It contains a good combinations of ingredients to support bones, muscles and nerves. It can also improve relaxation and sleep quality. Each serving size has a fair amount of calcium and vitamin D3, but only a little bit of magnesium for some reason. The price is alright, I think you should be able to find something a bit cheaper, but it's not that bad in the same time. The tablets are large but you get used to it.

If you have a problem swallowing pills, these might present a problem. I don't have that issue, but someone else might. I change what supplements I take sometimes to include potassium, but I always take D3 and magnesium. These appear to be similar to what I normally take, and there have been no adverse effects.

The combination of 1200mg calcium, 80mg magnesium, and 25mcg of vitamin D3 is good to have all in one pill. Unfortunately, despite the company calling itself "U.S. Doctors' Clinical" and having a list of doctors purportedly on their "advisory board," there is no other testing or link to 3rd-party lab results backing these supplements. Without that, there's really no way of knowing the actual composition of these pills or their consistency. The best I can say is that I've had not had any side effects from taking them.