Ms. Jamil, who started the #iweigh movement on Instagram — which aims to illustrate that a person’s worth should be measured in accomplishments, not in pounds — said she cares so much partly because she still grapples with health problems from similar products she used to buy and ingest.

“I was the teenager who starved herself for years, who spent all her money on these miracle cures and laxatives and tips from celebrities on how to maintain a weight that was lower than what my body wanted it to be,” she tweeted. “I was sick.”

On Tuesday, Ms. Jamil mocked these celebrities in a video that’s been viewed three million times between Twitter and Instagram. In it, she’s sitting on the toilet, sobbing through smeared makeup while sipping a shake.

Readers: Which beauty item would you be happy to never see again? Let me know at dearmaya@nytimes.com.

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By the numbers

$4.5 billion

That’s the net worth of Denise Coates, the richest woman you’ve probably never heard of. Ms. Coates, the British founder and chief executive officer of the online gambling company Bet365, is more than 10 times richer than Queen Elizabeth II, according to Bloomberg. She just joined the ranks of the world’s 500 richest people for the first time. She’s the only woman among the 17 billionaires in Britain .

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More from The Times

“If Bobbie talks, I’m finished.” A trove of text messages details a plan by the former CBS mogul Les Moonves to silence an accuser. [The New York Times]

What is it about the word “wife”? “I don’t want to be introduced at all, as anything other than my name, I thought, but I did not say this out loud,” writes Marcia Walker, for our Rites of Passage essay series. [The New York Times]

A global epidemic of “femicide.” More than half of all female homicide victims last year were killed by intimate partners or relatives. [The New York Times]

“We are willing to die here.” As war takes a toll on millions of women and girls in Yemen, gender-equality activists are pushing to be included in future peace negotiations. [The New York Times]

“Help Wanted — Female.” It has been 50 years since The New York Times classified job ads went unisex. So where are all the female C.E.O.s? [New York Times Opinion]

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From the archives: Remembering Harvey Milk