We got the skinny on this deceptively delicious deal. David Protein Bars — the high-protein, low-calorie bars that recently found themselves under legal scrutiny — are back in the conversation just in time for Amazon’s Big Spring Sale , now marked down up to 20% off. In the lawsuit, the brand is accused of misrepresenting the bars’ calorie and fat content. But, as Peter Rahal , founder of David Protein, has explained to news outlets and on his own social platforms , some don’t understand how