User blog comment:Fliu/Chapter 929: Jurassic Wano/@comment-3075024-20190101175736/@comment-99.72.92.253-20190102044952

Interesting theory, we don't know if they would affect other zoan users in the same way. It would be interesting to see what would happen to someone else if they ate one even if it doesn't work the same way for anyone else. Since Kaido no longer has a supply of Smiles he would need to improve the devil fruit users he already has and this might be a solution he would pursue if he finds out about it. That being said, if Chopper before the time skip is any indication, too many of these things would give a massive boost of strength at the cost of losing their minds and eventually dying or at the very least passing out from them. An overdose of anything is dangerous, especially something that affects their bodies in this way.