Do cancer cells produce toxins in the body?

Not directly, but some cancers like to secrete endogenous materials like hormones that can mess up normal endocrine homeostasis. read more

If they do produce toxins, then the surrounding cells would die, which includes the cells that make up the blood vessels in the region that supply nutrients and oxygen. read more

Toxins from Plants. Abrin, found in the seeds of the rosary pea, is one of the most poisonous plant toxins. Ricin is a poison found in castor beans. Each year, tons of castor beans are grown to produce castor oil. Both ricin and abrin work by entering human cells and preventing the cells from making the proteins they need. Without the proteins, cells die. read more