Leaf lettuce

Leaf lettuce (Lactuca sativa) , also known as Lactuca scariola var. sativa L. scariola var. integrata L. scariola var. integrifolia , is scientifically classified as Kingdom: Plantae Clade: Angiosperms Clade: Eudicots Clade: Asterids Order: Asterales Family: Asteraceae Genus: Lactuca Species: L. sativa.

Lettuce, scientifically known as Lactuca sativa, was first cultivated by the Egyptians thousands of years ago. The Egyptians used the seeds to produce oil and also utilized the leaves of this useful vegetable. The plant also had cultural and religious significance in ancient Egypt, as it was considered to be sacred. Later, the Greeks and Romans also cultivated this crop.

Health Benefits

Due to its extremely low calorie content and high water volume, lettuce is actually a very nutritious food. Based on its nutrient richness, our food ranking system qualified it as an excellent source of vitamin A (notably through its concentration of the pro-vitamin A carotenoid, beta-carotene), vitamin K, folate, and molybdenum. Romaine lettuce also emerged from our ranking system as a very good source of dietary fiber, four minerals (manganese, potassium, copper, and iron), and three vitamins (biotin, vitamin B1, and vitamin C).

Nutrient Facts

Nutritional value per 100 g (3.5 oz)
Energy   15kj
Dietary fiber   0.6g
Carbohydrates   1.5g
Sugars   0.94g
Fat   0.4g
Protein   1.4g
Calcium 4% 70mg
Copper 0%  0mg
Iron 10% 1.20mg
Magnesium 9% 29mg
Manganese 31% 0.79mg
Phosphorus 5% 31mg
Potassium 2% 100mg
Sodium 6%  80mg
Zinc 4%  0.43mg
Vitamin A IU % 0mg
Vitamin A equivalent 21% 166mg
Beta-Carotene 3% 360mg
B1 - Thiamine 5% 0.057mg
B2 - Riboflavin 9% 0.1mg
B3 - Niacin 1% 0.2mg
B5 - Pantothenic acid 3% 0.15mg
B6 - Vitamin 6% 0.082mg
B9 - Folate 18% 73mg
Vitamin C 30% 20mg
Vitamin E 1% 0.18mg
Vitamin K 97% 102.3mg
Choline 0% 0mg
Betaine   0mg
Other constituents    
Water   95.7
Fluoride   0

Growth Stages




Mid Stage


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