Lettuce
![](https://media.guestofaguest.com/t_article_content/gofg-media/2017/03/1/48543/17125633_771040209714249_4603310832200187904_n.jpg)
"But it's green and it's a leaf!" you declare. However, lettuce actually contains lactucin, a substance that affects your brain in a way similar to opioids.
[Photo via @jmeihwa]
"But it's green and it's a leaf!" you declare. However, lettuce actually contains lactucin, a substance that affects your brain in a way similar to opioids.
[Photo via @jmeihwa]