Instead of devouring a box of chocolates, try this PMS-worthy chocolate banana smoothie. The smoothie is made with Greek yogurt and chocolate soy milk to provide calcium, which has been shown to help reduce PMS. There's also fiber-rich spinach, full of B vitamins such as riboflavin and thiamine, proven to decrease PMS symptoms. The banana and cashews offer magnesium, which relieves bloating and constipation and also eases cramps. You can't go wrong here!