Aspartame is broken down to phenylalanine, aspartic acid, and methanol.

阿斯巴成丙氨酸、天冬氨酸和甲醇。

And you'll see tryptophan, and tyrosine, and phenylalanine, and quinone gas, and lactic acid, cholesterol.

你会看到色氨酸、酪氨酸、丙氨酸、醌类气体、乳酸、胆固醇等成。

What if I had a deficiency in phenylalanine or tyrosine?

如果我缺乏丙氨酸或酪氨酸会怎样？

Phenylalanine is in so many foods, it's incredibly hard to avoid.

丙氨酸存在于很多食物中，真的很难避免。

People with PKU are unable to properly metabolize or digest phenylalanine, which is one of the 20 common amino acids that we've been talking about.

患有丙酮尿症的人无法正常代谢或消化丙氨酸，这是一种我们之前提到的20种常见氨基酸之一。

The consequence of ingesting phenylalanine for people with PKU is that they are subject to permanent intellectual disabilities, so it's a scary thing to have.

丙酮尿症患者摄入丙氨酸的后果是可能会导致永久性的智力障碍，所以这是一种很可怕的情况。