BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Even a seemingly healthy salad from a fast food restaurant is often light on fiber-simple lettuce greens provide only about 0.5 grams of fiber per cup. Look for salads that include other vegetables, and whenever possible, up the fiber content by adding your own nuts, beans, or corn.

Detailed explanation-2: -Lettuce contains less than 1 gram of fiber per cup (49 grams), the majority of which is insoluble. This is significantly less fiber than the amount found in the same volume of most other vegetables. The amount of insoluble fiber you can tolerate varies from one person to another.

Detailed explanation-3: -Lettuce is an excellent source of beta carotene (vitamin A) which is needed for healthy skin, bones, and eyes. Lettuce is a fair source of folate, which is needed for healthy cells and the healthy growth of babies during pregnancy in order to prevent neural tube defects.