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Unless you're an extreme athlete, recovering from an injury, or over 60, you probably need only 50 to 60 grams of protein a day. And you probably already get that in your food without adding pills, bars or powders. Madeleine Cook and Heather Kim/NPR hide caption

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Madeleine Cook and Heather Kim/NPR

How Much Protein Do You Really Need?

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Some of the "milks" on offer by Elmhurst Milked, which operated as a traditional dairy in New York for nearly 100 years. These days, Elmhurst has replaced cows with nuts, oats and rice. Courtesy of Elmhurst Milked hide caption

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Courtesy of Elmhurst Milked

Already, Ripple has expanded its offerings to include a creamy half-and-half and, this month, a Greek-style yogurt, both of which can be used in cooking. Caitlin Maddox-Smith/Ripple Foods hide caption

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Caitlin Maddox-Smith/Ripple Foods

A duck-billed dinosaur skeleton, which the researchers think ate crustaceans, on display in 2009 at the Venetian Resort Hotel Casino in Las Vegas, Nevada. Ethan Miller/Getty Images hide caption

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Ethan Miller/Getty Images

Indian female farmers sow paddy in a field during monsoon season near Allahabad on July 19, 2014. The monsoon rains, which usually hit India from June to September, are crucial for farmers whose crops feed hundreds of millions of people. Sanjay Kanojia/AFP/Getty Images hide caption

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Sanjay Kanojia/AFP/Getty Images