Canned tuna is one of the most convenient proteins on the market—affordable, shelf-stable, and versatile. But while it’s often praised as a "healthy" pantry staple, the truth about canned tuna is more complex than it appears. This post dives into the less obvious health concerns surrounding canned tuna—not just the commonly discussed mercury levels, but hidden industrial processing practices, overlooked contaminants, and the environmental toll that could affect your health indirectly. ⚙️ Hidden Industrial Processing: How Canned Tuna Loses Its Nutritional Value 🧪 Many assume that canned tuna is healthy because it's still "just fish." But the truth is, the way canned tuna is processed plays a major role in reducing its original nutritional benefits. According to the National Institutes of Health (NIH) , heat processing during canning significantly depletes the natural levels of omega-3 fatty acids, particularly DHA and EPA. These are essential fats that help r...