The Healthiest Fish in the World is Also the Cheapest
Fish has long been considered one of the healthiest foods, but many people still don't eat it often enough – it's most often on the table only occasionally or during fasting periods. However, nutrition experts point out that fish should be a regular part of the diet because it is rich in quality proteins, vitamin D, iodine, and omega-3 fatty acids, which are important for heart health and proper brain function.

TL;DR
- Fish is a healthy food rich in protein, vitamin D, iodine, and omega-3 fatty acids.
- Experts recommend eating fish at least twice a week.
- At least one of these meals should include fatty fish like mackerel, sardines, or salmon.
- Omega-3 fatty acids are linked to reduced risk of cardiovascular diseases, better brain health, and reduced inflammation.
- Sardines and mackerel are among the healthiest and most affordable fish options.
- Smaller, fatty fish contain fewer heavy metals like mercury compared to larger predatory fish.
- Recommended cooking methods include baking, grilling, and boiling.