In an interview with The Cut, actress Natalie Portman revealed that she, too, has struggled with imperfections as an adult. She also said that switching from vegetarianism to stricter veganism greatly improved her skin.
“I gave up dairy and eggs, and never had a flare-up again,” she said. “That was definitely a find.”
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That doesn’t mean cutting out dairy and eggs will work for everyone. A small handful of studies have found that dairy products can aggravate acne, according to the American Academy of Dermatology (AAD). the link appears to be particularly strong with skim milk compared to other dairy products such as cheese or yogurt.
Still, the evidence is very preliminary, and for now, the ad does not recommend any changes in diet as a way to treat acne.