So basically vitamin A toxicity is causing the scurvy. Here is what Grant Genereux said about it:
Vitamin C
If there’s going to be more of the retinyl esters back flowing from the liver into serum, is there something else people can do to mitigate the harm? Unfortunately, I don’t have any great answers. But, I’ve since learned more about vitamin C. What’s interesting about vitamin C is that it appears to be only moderately beneficial when people are healthy. Conversely, where vitamin C really shines is when taken when people are sick. It is also reported to be very protective in the context of vitamin A toxicity. So much so, that I think, scurvy might just be misdiagnosed vitamin A toxicity. The reason that vitamin C plays such a critical role is that it facilitates the formation of collagen and bone rebuilding. These are two of the first tissues affected by vitamin A toxicity. Although vitamin C is not at all a direct antidote for vitamin A toxicity, it appears to play a critical role in accelerating the body’s repair process from it. Even though I had mentioned the need for vitamin C in my eBooks, I think I seriously underestimated its importance. Source