I have mild osteoporosis, and my doctor has prescribed that I take at least 1200 mg of calcium per day. She also wants to see me taking at least 800 IU of vitamin D along with it. However, I have been aware for some time that other minerals are instrumental in maintaining bone health. Magnesium is an important mineral that most people are deficient in, and without magnesium, calcium is not properly absorbed. Vitamin K is also needed in small quantities for bone health, along with zinc and boron. Phosphorus is a very important mineral associated with bone mineralization, but it is so abundant in the foods we eat that it is not necessary to supplement it. A quick study of essential minerals for bone health on the Internet has confirmed these findings to me. Common knowledge would have it that calcium citrate as well as other formations of calcium are superior to calcium carbonate, but studies published on the Internet tell me that this is not necessarily true. For most people, all forms of calcium are metabolized OK. From reading other peoples commentaries, it seems that people take calcium for many different reasons, and have different reactions to the calcium they take. In general, the body will not absorb more than 500 mg of calcium in one dose. So, when taking doses of calcium, it is well to split it into several doses per day, taken with food. Most adults only require 1000 mg of calcium per day, but aging women need at least 1200 mg of calcium per day. Magnesium is dosed at about one half the number of milligrams of calcium that you take. So if you take 500 mg of calcium, it should be accompanied by vitamin D as well as 250 mg of magnesium. Vitamin K and the other micronutrients are well to have combined with your calcium supplement if you are taking it for bone health. While I am on the subject of osteoporosis, although it is prevalent in women, men also get it. If you are a man, I would suggest that you have yourself tested for bone density from time to time, especially if you suffer from spinal pain. I have one male friend who developed osteoporosis at a young age: 35 years old. My father suffered greatly from bone disintegration in his spine during his old-age, and when it was too late to do anything about it, it was found that he had osteoporosis. With this in mind, I picked out four different cocktails of calcium, magnesium, and vitamin D from what ZeeBooth had to offer, and in this review I will discuss the pros and cons of each one. Nature Made brand has a supplement called Calcium Magnesium Zinc with Vitamin D in a jar containing 300 tablets. This bottle costed $16.95. I would require 4 tablets per day to get sufficient calcium for my osteoporosis, making the cost per day of this supplement to be $.23. The serving size for calcium is 333 mg per tablet, which is within the recommended dose for adequate absorption. The ratio of calcium to magnesium is less than 2:1, so there is less magnesium per tablet then I would like to see. Each tablet also contains 200 IU of vitamin D3, so if I took four of these I would receive 800 IU of vitamin D, which is just what the doctor ordered. As far as composition goes, the calcium is in carbonate form, the magnesium is in oxide form, and in addition there is 5 mg of zinc sulfate. Magnesium and calcium are both VERY bulky minerals. That is why there is not a sufficient amount of these minerals in your daily vitamin. You have a choice: in order to get enough of these minerals you need to either take several very large tablets daily, or lots of little ones. Nature Made opted for offering their supplement in very large tablets, which would result in doses that are hard to swallow. I would rate this supplement as being sort of average. It does not offer extra micronutrients, and the calcium and magnesium are in their cheapest forms. It would certainly be adequate as a daily supplement, but you would have to choke down the large pills, and live without the extra bells and whistles that some of the other brands might provide. Country Life brand has a supplement called Calcium Magnesium Complex in a 90 tablet bottle. This costs $7. To achieve my target of 1200 mg of calcium per day I would need to take three tablets, making the cost per day out to be $.23 per day. Country Life also chose to compound their supplement into a small number of large tablets per day. One tablet provides 500 mg of calcium, which is within the limit that your body can absorb in one meal, and the calcium is in the form of hydroxyapatite, citrate, aspertate, and a couple of less common compounds. It also contains phosphorus, which is unnecessary, and magnesium in the form of oxide, citrate, taurinate, and a couple of other compounds. There is no vitamin D included, so an additional vitamin D supplement would need to be taken at the same time. There are no micronutrients in the supplement, which may or may not be a good thing. Micronutrients in the form of minerals can pile up in your system if...