10 Scientifically Proven Health Benefits Of Lettuce

9. Insomnia

Lactucarium, a chemical found in lettuce, calms the nervous system and aids sleep. If you have trouble sleeping at night, you can add lettuce to your late-night salad. Lettuce also contains lactucin, a substance that promotes sleep and relaxation. Even in mediaeval times, this vegetable was used to treat insomnia.