What nearly universal benefit do almost all lettuce varieties share, regardless of leaf color?

Answer

High water content for hydration

A fundamental characteristic shared across virtually all types of lettuce, whether it is the pale Iceberg or the dark Romaine, is their composition which is primarily water. This significant fluid volume makes lettuce an excellent and refreshing dietary component for supporting overall bodily hydration needs. Consuming substantial servings of lettuce contributes meaningfully to an individual's daily fluid intake, which in turn aids systemic functions such as maintaining proper body temperature and facilitating the transport of nutrients throughout the body.

What nearly universal benefit do almost all lettuce varieties share, regardless of leaf color?
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