Pure magnesium is actually a metal and it would be impossible to supplement with. In fact, we are all quite familiar with pure magnesium, as many pencil sharpeners are made out of magnesium metal! So how do we turn magnesium into a form with which we can supplement? The easiest, and most straightforward way, is to simply oxidize magnesium metal which then forms Magnesium Oxide. This may sound familiar to you if you have ever looked for a Magnesium supplement, as almost every Magnesium supplement out there is made with Magnesium Oxide.
The main advantage of Magnesium Oxide, is that a high percentage (60%) of it is elemental magnesium, with the rest of it being oxide. We refer to the Magnesium content of Magnesium Oxide as "elemental magnesium" and Magnesium Oxide is very high in elemental magnesium. This is a great thing, as you should consume 400mg of elemental Magnesium every day, through diet and supplementation. However, the elemental Magnesium from Magnesium Oxide is not very bioavailable. Due to this, other forms of Magnesium have been developed which help improve the bioavailability of Magnesium. The issue with a lot of these forms of magnesium, such as Magnesium L Threonate and Magnesium Glycinate, is that the increase in bioavailability comes at the cost of decreased percentages of elemental magnesium. Magnesium Glycinate for example, only contains about 15% elemental magnesium which is in sharp contrast to Magnesium Oxide, which contains up to 60% elemental magnesium. With that in mind however, Magnesium Glycinate is significantly more bioavailable. By taking Magnesium Glycinate, you will be able to more easily hit the target of 400mg elemental magnesium per day. This is due to the fact that 400mg of elemental Magnesium from Magnesium Glycinate, will more readily absorb than the equivalent amount of elemental Magnesium from Magnesium Oxide. One of the main advantages this has is drastically reduced gastrointestinal discomfort which is incredibly common with low bioavailability forms of Magnesium such as Magnesium Oxide and Magnesium Citrate. When Magnesium is not properly absorbed in the intestines, it can create gastrointestinal discomfort, and thus, the more bioavailable the Magnesium is, the more elemental magnesium you can absorb without experiencing any discomfort!
The issue with various forms of high bioavailability Magnesium, such as Magnesium Glycinate and Magnesium L Threonate, is that you have to take fairly large doses of them to achieve target elemental Magnesium levels. So, how can we achieve the best of both worlds, the low dosages of Magnesium Oxide, and the high bioavailability of Magnesium Glycinate and Magnesium L Threonate? For this answer, we must look towards the unique properties of Sucresters!