"The tomatoes, as Michael calls them, they're notional tomatoes," he continued. "They look the same, they're still bright red, but they no longer have the nutritional value. They've been changed."
Pollan said we've reached this point because "we've been on this quest since World War Two to make food as cheap and abundant as possible."
"It's succeeded…but it's almost succeeded too well," he continued. "It's making us fat. We have this tremendous problem with obesity and type two diabetes. And, as it turns out, cheap food has many, many hidden costs." Among them, he said, are brutalized workers and animals.
Watch the full interview below.
Click here for the rest of this week's "Washington Unplugged" -- which also includes Republican Sen. Chuck Grassley talking about health care and his angry tweets and Kennedy Corpus of Green Bay who got a note from President Obama yesterday to give to her teacher.