But in our current polluted environment, trace amounts of precursors found in an otherwise adequate diet may not be sufficient to allow for full GSH replenishment.

• 但在我们当前处于受到污染的环境下，原来应是适量膳食所含的微量谷胱甘肽前体就不足以供作完整补充谷胱甘肽之需。