New diets come and go often, but every now and then, some stick around. The latest: protein. Everyone seems to be looking for more ways to add it to their diet.

From coffee shops to grocery stores, you couldn't miss the promotion of protein even if you tried. But how much do you need?

Doctors and nutritionists say it's less than what social media might lead consumers to believe.

Prioritizing protein isn't new, but the number of people doing so is.

"Things tend to go to an extreme at first," said Kim Flannery, director of nutrition at the Wisconsin Athletic Club. "And I think that's kind of where we are right now."

It's everywhere, from social media influencers and now in coffee shops.

For the first time, Starbucks added protein to its menu of drinks, even allowing customers to add it

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