green is the middle color or the fourth of the rainbow many associate green with growth life and health it may also signify fertility as well as calmness and restfulness the greenness of a vegetable is due to the presence of chlorophyll with the help of this type of pigment plants can absorb light to produce sugar this process is better known as photosynthesis. chlorophyll is a fat soluble substance its basic structure is similar to heme in hemoglobin except that it has magnesium instead of iron in its central atom because of this it can contribute to the health of the blood and blood building organs in the body chlorophyll also has antioxidant and anti-inflammatory properties so much so that it is sold in pure liquid form as a food supplement this green plant pigment often found in leafy vegetables also has detoxifying and deodorizing properties it can help flush out toxins and odors in the mouth and digestive tract