"Many people make the mistake of ‘eating healthy’ by increasing their fruit intake—but it’s a rookie move," says Will Caton, a celebrity trainer in Brentwood, California. Instead, load up on nutrient-rich dark-green veggies like kale, spinach, and broccoli.
"Not eating sugar is the best anti-aging treatment you can do for yourself," says Fredric Brandt, MD, a dermatologist in Miami and New York City. Sugar breaks down collagen through a process called glycation, which can eventually lead to wrinkling.
It ensures that your body produces enough skin-firming collagen and elastin. Salmon is also high in healthy fatty acids that reduce inflammation, says Jackie Keller, founder of NutriFit, a Los Angeles–based food-delivery service that caters to Reese Witherspoon and other leading ladies.