1 · Raw tomato — lycopene locked in cell walls
Start from a counterintuitive conclusion, told in reverse: tomato's most valuable pigment, lycopene, is actually hard for the body to absorb when eaten raw.The reason is structural: lycopene is locked inside plant cell walls and cell structures, like being shut in a series of rigid little boxes. A raw tomato may be brilliantly red and rich in lycopene, but most of that pigment simply can't get out — the digestive tract struggles to free it from intact cells, and the fraction the body actually receives is low.So the plain intuition raw is most nutritious is, for lycopene, exactly backwards. Keywords: locked, low bioavailability. What follows opens that lock step by step, then helps it reach the blood.