James Van Der Beek was 'doing everything' for his health. One subtle symptom revealed he had stage 3 colon cancer at 46

James Van Der Beek, 48, was diagnosed with colon cancer in 2023. He's spreading the word about the importance of early screenings. Guardant Health For years, James Van Der Beek was invested in optimizing his health. "I was doing everything," Van Der Beek, 48, told Business Insider. "I was doing…