Beyond Aesthetics: Dr. Maya Rosman’s Comprehensive Guide to the Functional Power of Phytochemical Colors

Discover the truth behind the five color groups of produce. Dr. Maya Rosman explains how lycopene, allicin, and anthocyanins protect your health.

By: AXL Media

Published: Apr 24, 2026, 10:34 AM EDT

Source: Information for this report was sourced from The Jerusalem Post

The Biological Significance of Natural Pigments

The visual appeal of a colorful plate is far from superficial; it is a direct indicator of a plant’s internal defense mechanisms, known as antioxidants. Dr. Maya Rosman explains that these colors represent different phytochemicals that protect the body against cellular damage and foreign substances. By consuming a wide spectrum of colors, individuals are essentially adopting a multi-layered biological shield. Rosman argues that diversity in produce is not just a culinary suggestion but a clinical necessity for maintaining long-term physiological health.

Red Group: The Protective Power of Lycopene

The red category is dominated by lycopene, a potent antioxidant specifically noted for its role in ocular health and cancer prevention. Rosman highlights that lycopene is particularly effective at reducing the risk of cataracts and prostate cancer. Notably, the bioavailability of this nutrient increases significantly when the produce is cooked. Tomatoes remain the premier source of lycopene, especially in concentrated forms like paste, though watermelon, red grapefruit, and pink guava also provide significant concentrations of this essential compound.

Orange and Yellow: Foundations of Immune Resilience

Vegetables and fruits in the orange and yellow spectrum are rich in carotenoids, which the body converts into vitamin A. This group is fundamental for the maintenance of healthy skin, robust immune function against viral infections, and the preservation of night vision. Carrots are identified as the primary source within this group, with their nutritional value remaining stable or even improving through heating processes, such as in soups. Other vital contributors include sweet potatoes, mangoes, apricots, and persimmons.