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.
It's difficult to overdose on vitamin B, since B vitamins are water soluble and therefore, excess B is excreted through your urine. That said, you can still take too much and suffer symptoms of overdose.f you are taking a B supplement or are concerned that you getting too much, then you should know all there is to know about this important vitamin and how it interacts with your body. There are so many B vitamins that it can be confusing to keep track of them; there are over 20 when all is said and done.