Yes. I found the
exact wording in a public
Christian Forums thread titled
“God did not create from nothing”. In post
#2,013, the user says:
“Person was dated using C14… off by 1000 years… because the person ate a lot of shrimp… The daughter ate a lot of shrimp also… C14 is bad, really bad.” (
Christian Forums)
The closest pseudoscience/creationist source behind this appears to be the
Institute for Creation Research article
“Viking Bones Contradict Carbon-14 Assumptions”. It argues that a seafood diet, including
“shellfish (shrimp or crab),” undermines assumptions in C14 dating, and then uses this to imply that radiocarbon dating is unreliable. (
Institute for Creation Research)
However, the actual scientific case is the
Repton Viking burial study, and it does
not show that C14 is “bad.” It shows that
marine reservoir corrections must be applied when bone collagen comes partly from marine food. The peer-reviewed paper says the Repton radiocarbon uncertainty was resolved by applying the appropriate marine-reservoir correction. (
Cambridge University Press & Assessment)
The “1000 years” part looks exaggerated. In the Repton case, one clearly discussed grave had a terrestrial C14 calibration that was
at least about 100 years too early, not 1000 years; after correcting for marine diet, it matched the archaeological evidence. (
Cambridge University Press & Assessment)
So the claim is best described as:
A forum-level pseudoscience claim based on a distorted version of the marine-reservoir effect.
The real science is:
Eating a lot of marine food can make bone collagen appear older in radiocarbon dating unless corrected, but this is a known, measurable, and correctable effect—not evidence that C14 dating is unreliable.
