This study is ten years old and may be outdated. But I tend to regard it as significant in my anti-cancer diet.
ncbi.nlm.nih.gov/pmc/articl...
"Men in the highest quintile of choline intake had a 70% increased risk of lethal prostate cancer"
"Conclusion: Of the 47,896 men in our study population, choline intake was associated with an increased risk of lethal prostate cancer."