There are many problems with over consumption of meat. One of those is that most meat purchased in the grocery stores is poor quality meat from animals that are unwell. Antibiotics have become a staple is the raising of livestock for meat and that is having far reaching consequences. Antibiotics should be reserved for treating animals with bacterial infections, not used as a tool to have the animal grow bigger But that's how they are frequently used. The same applies to much of the dairy we consume, it comes from unhealthy animals and that presents significant nutritional issues.