Prior to the SmartPoints plan, Weight Watchers used PointsPlus, introduced in November 2010. Touted by Weight Watchers as incorporating a decade of science compared to the prior Points-based plans, the focus was on assisting members in creating a calorie deficit to lose weight using a reformulated calculation approach using total fat, carbohydrate, dietary fiber, and protein. A change from the old points system was the identification of Power Foods, and assigning fruits and most vegetables a points value of 0. PointsPlus was calculated using total fat, carbohydrate, dietary fiber and protein. As an alternative to the PointsPlus plan, participants could use the Simply Filling Technique. On the Simply Filling Technique, participants ate from a designated list of foods without the requirement to track. Categories of foods on the list included: most fruits and vegetables, whole grains, non-fat dairy and dairy substitutes, lean proteins, and a handful of other items. Because the plan did not require tracking, participants needed to be mindful to "eat portions that feel right for them. Not so much that they feel too full, and not too little that they still feel hungry. "