This Common Supplement Could Ruin Your Entire Whole30

ICYMI, the Whole30 is all about eating real foods-there are no frozen meals to microwave and absolutely no sugary protein bars allowed.

Another thing that can be off-limits on the Whole30 diet: protein shakes, since the Whole30 encourages dieters to eat whole foods in their natural form. Still, many dieters rely on the filling power of a protein shake to get them through a busy day and keep them feeling fuller longer.

But that's just the first hurdle: It’s also no easy feat finding a Whole30-approved protein powder, since most brands contain ingredients on the no-no list, like dairy-based whey proteins, soy proteins, and artificial sweeteners-but it's not totally impossible.

“For the occasional protein shake on Whole30, look for powders that include protein from collagen, hemp, or eggs,” says registered dietitian Erin Palinski-Wade, author of 2 Day Diabetes Diet. “Avoid powders with artificial sweeteners or added sugars, and flavor your shake or smoothie naturally with fruits, vegetables, and 100 percent fruit juice instead.”

Since it can be hard to sift through all the options out there (and trust me, there are a lot), here are five dietitian-approved, Whole30-friendly protein powders you can buy on Amazon right now.