Anyone who likes seafood will be keen to know that there's one type of fish said to be more nutritious than the rest, with so many potential health benefits. Leading the nutritional rankings, this variety has been crowned the ultimate superfood in the BBC's assessment of the world's most wholesome foods - it's the ocean perch.

The superfood achieved an outstanding score of 89 out of 100 on the nutritional scale. Packing a protein punch with roughly 20 grams per 100g serving and just 79 calories, this fish is also low in saturated fats too. However, there's more good news for food lovers, reports Surrey Live.

The rockfish, as it's also known as, is just one of many when it comes to nutritionally-dense foods you should be adding to your diet.

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Salmon is still a firm favourite thanks to its omega-3 fatty acids - vital nutrients as our bodies are unable to produce them naturally.

As well as this, an unexpected vegetable earned the title of "healthiest vegetable on Earth", after research revealed its highly rich nutrient content. Drawing upon the Centre for Disease Control's approach, which assesses foods based on their vitamin and mineral content, it looks like eating a varied diet could hold the answer.

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Beating other nutrient-rich vegetables such as spinach, chard, and beetroot greens that earned scores in the 80s, watercress came out as the best leafy green with a flawless rating of 100.

Jennifer Di Noia, an associate professor of sociology at William Paterson University in Wayne, New Jersey, said: "Higher-ranking foods provide more nutrients per calories."

Meanwhile, for those keen to expand their wholesome snacking selection, the title of "world's healthiest snack" was awarded to honey, which also boasts impressive health benefits. It's a powerful superfood that deserves a place in your everyday diet.

Researchers have found that it can have so many potential wellness advantages in humans. Essentially, it's a natural liquid sugar comprising glucose, fructose and assorted minerals.

Considering honey is almost entirely sugar, it might not seem like the obvious choice for regular consumption.

But this fat-free ingredient does pack in a significant amount of health-promoting plant compounds with every spoonful. It's brimming with antioxidants - which have been scientifically validated to assist in reducing the likelihood of certain health conditions including cancers, infections, and various chronic diseases.