Answer:
Research from the 1980s and 1990s has demonstrated that vitamin K3 is harmful to humans.
These studies have linked vitamin K3 to liver damage and the destruction of oxygen-carrying red blood cells
Step-by-step explanation:
Vitamin K3, also known as menadione, is a synthetic or artificially produced form of vitamin K.
Vitamin K is important for blood clotting and bone health. It may also prevent dangerous buildup of calcium in tissues, organs, and blood vessels of people with or at risk of certain conditions like kidney disease, heart disease, and diabetes