Verdict: No, dangerous
Bacon is dangerous for cats due to its high fat and sodium content, which can lead to gastrointestinal upset, pancreatitis, and sodium ion poisoning. The preservatives and additives in processed bacon can also be harmful.
High sodium intake can lead to hypernatremia (sodium ion poisoning) affecting neurological function. High fat can trigger pancreatitis, causing inflammation of the pancreas. Preservatives like nitrites can be toxic in large amounts.
Sodium, High Fat (triglycerides), Nitrates/Nitrites (preservatives)