Humans do not make Vitamin C like animals do; we need to supplement this essential vitamin to meet our daily needs. Inadequate amounts of Vitamin C means poor collagen. Vitamin C and Lysine work together to build collagen, which strengthens and holds together the coronary cells. Coronary arteries, closest to the heart, receive the greatest pressure. Without enough Vitamin C the collagen weakens. This sets the stage for heart attack or stroke. Healthy collagen also supports healthy teeth, gums, cartilage, bones, connective tissue and wound healing. The antioxidants in Medi-C Plus also support and help maintain good health.