First the bad news: The "safest" herbicide in the history of science may be harming us in ways we're just beginning to understand. And now for the really bad news: Because too much is never enough, the Environmental Protection Agency just raised the allowable limits for how much of that chemical can remain on the food we eat, and the crops we feed to animals -- many of which end up on our plates as well. If you haven’t guessed its identity yet, it’s Monsanto’s Roundup, a powerful weed killer.
The EPA and Monsanto are apparently hoping that no one notices the recent rule change -- or, if we do notice, that we respond with a collective shrug. But that, my friends, would be a mistake. While Roundup may truly be the "safest" pesticide ever invented, that isn't quite the same as "safe." It just may be that Roundup represents a hitherto unrecognized threat to our health -- not because of what it does to our bodies, but because of what it does to our "internal ecology," a.k.a. our "microbiome."
As Michael Pollan deftly cataloged in his must-read cover story in the most recent New York Times magazine, scientists are just beginning to explore the inner reaches of our bodies to understand how our microbiome affects our health. Nonetheless, there are some growing signs that Roundup might be the last thing you want in there.