I’m a diet junkie, a sucker for every new food plan that hits the streets, or the web. Juice fasting, fruit smoothies, veggie shakes–I’m in! Grapefruit diet, plant-based vegetarian or vegan, fruitarian or pescatarian. Sign me up! Broth-based soup with only green vegetables as passengers on that train.  I’ll cook Weight Watchers, Jenny Craig, Med…