There’s nothing blatantly wrong with this approach, and it’s always been the preferred schedule among bodybuilders. Still, for most genetically-average, drug-free lifters, there’s no clear advantage to it over full-body training. You want muscle fast so you train five, six, or even seven days a week, thinking that the more you do, the faster you’ll see results. But it doesn’t take long before you learn the hard way about the importance of recovery. You’re sore all the time and your progress grinds to a halt, forcing you to scale your workouts back so you only hit a muscle once or twice a week, and this is the frequency most of us then stay with indefinitely.
Note that the maximum recommended frequency is 5 days per week. The 1977 study showed a higher incidence of injuries in test subjects who participated in jogging 5 days per week. This was contrasted to a lower injury rate for those who participated in jogging 1 or 3 days per week. To answer the question, “Is cardio 7 days a week bad or good?
It contains amino acids, the building blocks used for muscle growth. At the end of the day, you’re cutting by your own free will in order to look exceptional, so keep that goal in mind at all times and build the mental fortitude a bodybuilder needs to succeed. Most bodybuilders become familiar with their kitchens as a matter of necessity.