Brain tumor research is a relatively modern science that parallels the explosion of molecular biology and modern neuroimaging. While the science is new, Mayo Clinic has a long history of brain cancer treatment and research stretching back over 100 years.
Vitamins come in two forms: water-soluble and fat-soluble. The water-soluble vitamins are vitamin C and the B-complex vitamins. If you take in more than your body can use of these, they end up passing through you as expensive urine. Vitamins A, D, E and K, on the other hand, require fat to dissolve. Your body stores these vitamins, and if you take too much, the amount in your body can build to a harmful level. Tolerable Upper Intake Levels The highest amount of a vitamin you can safely take per day is known as the tolerable upper intake level, or UL.
Follow Following Unfollow Pending Disabled. A Stacy Wiegman, PharmD , Pharmacy, answered. Getting too much vitamin D can cause kidney stones. The stones aren't made of vitamin D itself, though. Excess vitamin D can make you absorb too much calcium -- and if you have too much calcium in the urine, it can crystallize into stones. A kidney stone can cause symptoms when the small mass travels from the kidney through a narrow tube called the ureter toward the bladder. The stone can block or irritate the tube, causing intense pain.