The body parts of the animals we choose to eat are littered with cancer tumors. And one butcher admits that when they see cancer growths, they just cut it off and sell it anyway, first to save money and also because customers do not see the entire animal corpse anyway!
A butcher shocked the internet, recently, by saying that when they come across cancer in pig corpses, he and many other butchers cut it out, and put it for sale as normal. So if you are still eating animal body parts from your local supermarket or restaurant, you might want to reconsider your diet choices.
The only way to be 100% sure about what you eat is by growing your food and eating only at home. This is way harder if you eat animals and live in the city. However, many people have reported that since they switched to a whole food plant-based diet, they feel much better with more energy.
3 John 1:2 Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth.