Originally posted by: LongCoolMother
vitamins are water soluble, which means excess will essentially be pissed out and such. however, its still advisable you dont megadose on a certain vitamin because it can cause vitamin defeciencies in other vitamins, creating a vitamin imbalance. thats why you should take a vitamin c complex if you want to bulk up on a specific vitamin c.
so, no, nothing will happen with you eating that much grapefruit, and nothing will probably happen either if you at 10g of vitamin c from 20 capsules of vitamin c. the question is why.