There are some toxic substances and antinutritional factors in flaxseed, such as antivitamin B6 factors and cyanogenetic glycoside, Which limit the application of flaxseed.

亚籽中毒性物质和抗营养因子（如抗素B6因子、糖苷等）的存在，尤其糖苷的毒性限制了亚籽的使用。