It looks like artificial sweeteners have a pretty long aftertaste. Canadian researchers found traces of four popular sweeteners in water samples taken from the Grand River in Ontario. That means the sweeteners are passing through you and modern sewage treatment plants. The researchers also found traces of the sweeteners in municipal tap water, which means that the sweeteners are surviving water purification systems. None of this is meant to single out sweeteners. Antidepressants, antibiotics, steroids, fragrances and a bunch of other stuff has shown up in our waterways.

+ Three new studies suggest there’s almost no upside to taking multivitamins. An editorial accompanying the studies sums up the findings: “Stop wasting money on vitamin and mineral supplements.”

+ Your wireless router could be murdering your houseplants. (This is based a simple study performed by high school students. But it’s pretty damn interesting.)