Butter leaf lettuce, also known as Bibb lettuce, is a cultivar of a lesser used lettuce called butterhead lettuce. It has a flavour that is somewhat sweet and buttery. Grown primarily in California, Arizona and Washington, butter lettuce has a uniform, light brown colour. Its leaves are thick and large but are easily removed from its head.
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Butter leaf lettuce is a good source of phytonutrients, organic compounds that are beneficial to your health and fight against disease. These phytonutrients include carotenoids, the substances that give the lettuce its pigment. One of these carotenoids is zeaxanthin. When consumed, zeaxanthin is absorbed into the retinal macula lutea in the eye. There, it acts as an antioxidant and helps protect the eye from harmful light. In older people, zeaxanthin helps fight against age-related macular degeneration, a disease in the elderly that deteriorates the sharpness of eyesight.
Butter leaf lettuce is a good source of vitamin A. If you eat just 99.2gr. of lettuce, it will provide you with 247 per cent of your daily vitamin A needs. It also has beta carotene, which converts into vitamin A in the body. Vitamin A is beneficial for skin and eye health and mucus membranes such as the lips. Lettuce is also a good source of vitamin K, which stimulates osteotrophic activity in the bones and can help increase bone mass. People suffering from Alzheimer's disease also benefit from vitamin K as it limits neuronal damage in the brain. Further, butter lettuce contains vitamin C, which helps the body fight off infectious agents such as viruses.
Lettuce is loaded with minerals that are important to your diet. Butter leaf lettuce contains both copper and iron, which help your body produce red blood cells. It also contains potassium, which helps regulate your blood pressure and controls your heart rate. Manganese is another mineral found in butter leaf lettuce that works with antioxidants to help rid your body of free radicals and other harmful properties.
The addition of lettuce to your meals can help fight against both osteoporosis and iron deficiency anaemia. Butter leaf lettuce is also a source of flavonoids, water soluble polyphenolic molecules that serve as antioxidants that prevent lung and oral cavity cancers. It is also beneficial for pregnant women because it contains folates, which prevent neural tube defects to the foetus.
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