Was there some study in the past that said otherwise? As thought it was common knowledge that diet is of course more important long term for having a healthy we

Was there some study in the past that said otherwise? As thought it was common knowledge that diet is of course more important long term for having a healthy weight. Since you can eat well, and do no exercise and have your weight under control. If you eat terrible but workout "alot" that will work in the short term but working out a lot consistently forever is quite impractical.