If you change the words you use to talk about your body and nutrition, you'll be more likely to lose weight, according to Every Word Has Power, by Yvonne Oswald. We don't think we'll be calling our Cheetos "empty filler food" any time soon, but Larson finds substance in the theory. "Positive self-talk about our bodies or healthy food choices reinforces positive behavior," she says.
Change Almost Anything in 21 Days, by Ruth Fishel, claims that if you write possible and personal wishes in the present tense 10 times a day, for 21 days— "I weigh 120 pounds and I can maintain my weight easily"—you’ll be motivated to make your wish come true. Our expert was dubious: "Is saying you weigh 30 pounds less than you do a positive affirmation?" asks Larson. "Sounds more like denial."