This controversial way of eating is gaining traction online. Have you ever eaten a stick of butter? Not in a pie crust or spread on toast — I’m talking about biting into a plain stick of butter.

So I would be eating a whole stick of butter per day every day because I was just that deficient in fat.” But now, six years in, she’s expanded to include a wider array of ingredients like ...

So I would be eating a whole stick of butter per day every day because I was just that deficient in fat.” But now, six years in, she’s expanded to include a wider array of ingredients like cheese, ...