Spinach
Spinach is filled with vitamin K, which plays a significant role in keeping your bones healthy and reduces the risk of a heart attack. If you have been wearing spectacles from an early age, eating spinach regularly can help improve your eyesight. It boosts your immune system with Vitamin A, Vitamin C, manganese, and foliate. You can either eat spinach raw or add it to your cooked meals and salads. You can also make a spinach smoothie.
Pricing: $2 per 9 ounces.