12 Superfoods to Help You Eat Healthy for $1 or Less
Cost Per Serving (1 cup): 60¢
Why kale is so good for you: Kale is an undisputed superfood. A single serving (1 cup cooked) has 10 times the daily value of bone-healthy vitamin K. It also has 3 times the daily value of vitamin A and is high in lutein and zeaxanthin, which all help your vision. Plus, it’s pretty darn tasty.