A closer look
Most animals on this planet have functioning livers that naturally synthesize ascorbic acid from raw glucose, meaning a dog will never get scurvy. Humans, however, share a broken mutant gene with guinea pigs and fruit bats, rendering us entirely dependent on our diets for Vitamin C. If we don't aggressively consume citrus or leafy greens, our collagen synthesis stops, our teeth fall out, and we biologically collapse. Evolution really dropped the ball.






