Fish is an extremely healthy food, primarily because of the high percentage of protein and omega-3 fatty acids. However, not all types of fish are equally healthy, so you should be careful about the frequency of their use in the diet.
Nutritionists say that sardines are the best canned fish and you can't go wrong with them. There are even 100 grams of protein in 25 grams of sardines. Thanks to the large amount of calcium, these small fish are extremely important for healthy and strong bones.
Tuna has a similar percentage of protein but less cholesterol than sardines. However, the calcium level is drastically lower, and nutritionists are extremely concerned about the amount of mercury that can be found in tuna.
In some companies in the world, they have started to check the percentage of mercury before packing tuna into cans, but this is still rare.
This harmful ingredient is the reason why many nutrition experts rule in favor of sardines whenever the question is raised as to which fish is healthier. The area where the fish is caught is not the only reason, although it is good to check the origin of the contents of the can whenever possible. The most polluted is the tuna caught in North America and Europe, and the least is that from the Northwest and Southwest Pacific, reports B92.
However, the bottom line lies in the place of fish in the food chain - smaller fish feed only on plankton, so they are healthier for human consumption. Bulk accumulates unhealthy ingredients for a longer time. If it seems to you that bigger - tuna - is tastier, try sprinkling sardines with a little lemon juice and sprinkling with parsley, you may change your mind.
Finally, take into account the quantities. Nutritionists recommend a maximum of two cans of tuna per week, while there is no limit in this respect for sardines. However, due to the amount of salt in sardines, you must serve them with unsalted foods.
Bonus video:
