Is the Heart Shaped Herb a Weapon of Mass Destruction?

I was kind of confused though when she's like, and bring up my brother's DNA because I'm like, wait, so does the heart shaped herb? Because you only, I guess you just shaped it. It's a Nevada thing. Does the heart shaped Herb change your DNA? Because I guess you take it once and then you have the powers, but then they can take it away too. Man, why don't they just eat the damn hearts?! Why doesn't everyone eat them? They seem to be pretty much a horror class. You need one black panther. The talakans get by just fine with everyone.