Has nature ever produced any perfect foods? Probably not. But there may be one that comes close. Salmon is loaded with multiple nutrients that have all been shown to play critical roles in numerous health systems. Furthermore, it is low in calories and fat, which means it will not contribute to weight gain.

Salmon is one of the richest natural sources of omega-3 fatty acids. These nutrients have been shown to support everything from heart health to brain health. Just one serving has more than 4,000 milligrams of the nutrients.

Additionally, salmon has high levels of numerous vitamins and antioxidants. It is a rich source of multiple B vitamins, including thiamin, niacin and vitamin B12. One serving also has more than 100 percent of the recommended daily allowance of the antioxidant selenium, which has been shown to support healthy aging.

On top of these nutrients, salmon is low in saturated fat, calories and calories from fat. This means the food can play an important role in an individual's weight management efforts.

So does this make salmon a perfect food? Perhaps not. But it may be leading the pack of contenders.