Lettuce is rich in plant compounds such as carotenoids, phenolic acids, and flavonoids, which act as antioxidants and help protect cells from damage. They are a source of vitamin A, C, and K, folate, and fiber, with darker leaves offering higher concentrations of these nutrients. The ancient Egyptians were the first to cultivate lettuce as a food crop.
- Tip burn under heat
- Poor nutrient mobility
- Heat sensitivity
- Poor shelf life