你给的链接,In particular, EFSA does not rule out genotoxicity concerns, meaning that there is a possibility that the use of titanium dioxide as food additive might cause DNA or chromosomal damage.
二氧化钛法国好像早就禁了,美国有量的要求,加拿大不知道。
搜到以前的有关报道,看链接 “新研究发现:食品添加剂二氧化钛或导致结肠炎”