Kale is a leafy green that is commonly used in salads and smoothies. It has gained popularity for its impressive nutritional benefits. Kale is one of the richest sources of vitamin K in the world. One cup has close to seven times the amount of vitamin K that the average person needs and only 34 calories.
5. Lemons and Limes
The juice and zest of these refreshing fruits can be found in everything from water, salad dressings, marinades and even alcoholic drinks. Citrus does more than just add flavor, as research has shown that lemon juice has compounds that can act as antioxidants to help prevent diseases. One fluid ounce of lemon or lime juice has only 8 calories.
Microgreens are miniature versions of salad greens that are picked before they are fully grown. A touch of microgreens can add an impressive amount of nutritional benefits for very few calories. One ounce of microgreens has only 6 calories but 340 percent of the daily value for vitamin A.