Grape seed and vitamin C can be eaten together, but it is not recommended to confuse together at the same time, need to be taken after a 10-15 minute interval. Grape seed is a good health supplement for vitamins, trace elements and dietary fiber, vitamin C, also known as ascorbic acid is one of the essential vitamins in the body. Grape seed is mainly B vitamins, which is rich in vitamins B1, B2, B4, B6, B12, they and vitamin C together with both supplemental vitamin B, but also can increase the rate of vitamin C intake and intake content, is a beneficial supplement. However, if overdose can increase the burden on the kidneys, but also in the kidney area to form kidney stones. Because both substances belong to the acidic, overdose will also burn the gastric mucosa, so you can eat together but need an interval of 10-15 minutes, not easy to eat more together.