CanPrev’s Magnesium Threonate - provides 50mg of magnesium sourced from magnesium L-threonate to help in energy metabolism, tissue formation, muscle function, and overall health. Research suggests that when magnesium is bound to threonic acid to form magnesium threonate, it reaches brain cells more effectively than other forms of magnesium. Too much calcium in brain cells can make cells overly active so  brain uses magnesium to move calcium along and support various functions that are crucial for learning and memory.