The visuals of a protein shake mixed with soda proves we've taken the soda concoctions beyond the limits of limits.

To be clear, protein Diet Coke isn’t an actual, official product sold by the Coca-Cola Company, but rather a mashup improvised by macro-focused soda fans. To make one, all you need to do is pour a vanilla-flavored protein shake (Core Power,

An expert registered dietitian shares the healthiest protein shakes to buy based on nutrition, ingredients, and quality.

Protein Diet Coke (Diet Coke and protein milk) is going viral. A dietitian analyzes the calories and protein content and shares the healthiest way to drink it.

So, is protein Diet Coke a good idea? Women's Health tapped a dietitian to find out. Meet the expert: Scott Keat

You need a cup of ice, a Diet Coke and your vanilla protein drink of choice. I used Premier Protein, but many of the online recipes use Fairlife. All you have to d