Can you add PB2 to yogurt?

Excuse me, could you clarify something for me? I've come across the phrase "Can you add PB2 to yogurt?" and I'm wondering about the context and purpose behind it. Is PB2 a specific ingredient or product that's commonly mixed into yogurt for a particular reason? I'm curious if it's a dietary supplement, a flavor enhancer, or something else entirely. And if it's SAFE and advisable to do so. Could you elaborate on the benefits or drawbacks of adding PB2 to yogurt, if any? Thank you in advance for your insight.