these are good products, these are bad products. >> it's good to have a book like this. i have young children. you don't spend the time, even though i advocate reading labels, it's hard to get through that and find all those preservatives. it's nice to have a book like this to help guide people. >> every aisle of the grocery store. there's cereals, candy bars, ice cream in the book. it's free of all these ingredients. >> beaver secretions and everything else. >> great to have you on the program. really appreciate it. thanks for being here. you might wonder looking at all that, why are these ingredients even allowed. we decided to call the fda and they say we're always studying the latest science. based on what we know know, all these are safe to eat at least in the quantities you'll find on the shelves. >> the average person will probably eat something or drink something that is acidic on a daily basis once it's gone, it's gone away for good.