If you want to boost your energy naturally and enjoy greater health, one of the best things you can do is eat nutrient-dense foods. Nutrient-dense foods are typically real and unprocessed foods, and have not been chemically altered or filled with synthetic ingredients. They’re foods that have a high nutrient content for the number of calories they contain, meaning you increase the amount off nutrition you get without having to consume many calories.

The problem with processed foods is that while they may be energy-rich, they’re also nutrient poor, which can wreak havoc on your body. To give your body what it needs to thrive, you need to add nutrient-dense foods to your diet. Spinach, for example, a popular nutrient-dense food that is full of lutein, which helps protect the eyes and decreases inflammation.

Bok choy is another example. This Chinese cabbage is known for its detoxification benefits—great for liver health! Plus, if you lightly sauté it with garlic and ginger, it’s incredibly delicious. Looking for more nutrient-dense foods? Here’s a full list of 15 of them.