Nah, they used it on me when I cracked a toe. If I knew that this may be that dangerous I’d go the way without the contrast agent.
So this reveals to me two issues
1. In general side effects of the contrast agent are not communicated properly. If I knew, I might have asked - hey can you do the analysis without the agent?
2. There’s no recommendation to avoid vitamin C prior and right after the MRI, heightening the risk.