A nutrition-based therapy using B vitamins may be an effective way to treat a syndrome that causes myopathies and that can be fatal in children. Mitochondrial depletion syndrome accounts for about 11 percent of the cases of children born with common myopathies, diseases in which muscle fibers lose function, and a more mild form of the syndrome affecting adults. In adults, the condition often generates an intolerance to exercise, fatigue, anemia, and neuropathy—disorders due to damaged nerves of the parts of the nervous system outside the brain and spinal cord.
