What is the healthiest fish to eat?

So, we're here to discuss what's considered the healthiest fish to eat, huh? Well, first things first, let's start by asking, what exactly makes a fish healthy? Is it the omega-3 fatty acids? The protein content? The low mercury levels? And when we dive deeper into this question, we come across a variety of options like salmon, trout, sardines, and herring. But which one truly stands out as the healthiest? Is it the wild-caught salmon packed with omega-3s and antioxidants, or perhaps the nutrient-dense sardines that are also a good source of vitamin D and calcium? Let's explore these options and more to find out.