Raw lettuce notes
Do not need to blanch lettuce, blanching will lead to more nutrient loss.
Because lettuce contains a lot of plant fiber, poor digestion or eat cooked lettuce is better, more conducive to digestion.
The most nutritious way to eat romaine lettuce is to peel it and eat it raw, because the nutrients in romaine lettuce are basically water-soluble and contain very little oxalic acid.