  The number one downfall for anyone who isn't achieving their fitness goals is nutrition. It doesn't matter how hard you train in the gym. If your nutrition plan isn't on par with that, you're not going to get the best results.  The number one downfall for anyone who isn't achieving their fitness goals is nutrition. It doesn't matter how hard you train in the gym. If your nutrition plan isn't on par with that, you're not going to get the best results.  