Proteinmaxxing: just how much protein do you really need?

Protein water? protein cereal or how about protein infused vodka? Protein products are everywhere but earlier this week the Bank of America issued a warning to the food industry that the protein craze could have peaked. 

Dietician Sarah Keogh and RTE business desk reporter Adam Maguire join Fran to discuss the products, proteinmaxxing, who's making money and how much protein does a person really need.  

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