In addition to being an excellent source of potassium, butter lettuce is also rich in iron and manganese. These minerals help regulate blood pressure and reduce the risk of heart disease. They also increase HDL, or good cholesterol, and lower LDL, or bad cholesterol.
Butter lettuce is also a good source of vitamins A, C, and E. These vitamins are known for their antioxidant properties, and they work together to protect cells from free radical damage that can lead to chronic diseases like cancer.
Folate, which is mainly found in butter lettuce, helps to maintain healthy blood levels of red blood cells. It also aids in the formation of hemoglobin, a component of oxygen transport in the body.
Although it is low in calories, butter lettuce provides a significant amount of vitamin K. This vitamin may interact with some medications, including warfarin (Coumadin).
Besides vitamin K, butter lettuce is a good source of calcium, iron, and folate. These nutrients can promote bone health and help to prevent bone loss.
To preserve butter lettuce freshness, rinse it thoroughly and dry the leaves before storing them. Then, wrap the leaves in paper towels and store in a plastic bag. This will help the leaves retain their shape and keep them fresh for a longer period of time.
In cold climates, butter lettuce is best grown in the spring or fall. In warmer areas, it can be grown in the summer.