I'll tell you why we need worms... we need them to help us decompose after we die... not before!
I always wondered how worms could get in the casket of a dead person... then I realised that we take them in with us!
But I'll pass on thinking that something like worms could be good for us when they are known to eat our nutrients then poop in us causing ammonia and acidity that makes us sick... the parasites even have parasites sometimes... ugh!!
I lost about 3 nights of sleep when I first learned about parasites! No thank you.... I'll stick to my chinese herbs twice a year 'just in case.'