Q&A: What to train first? Train the muscles you need most work on at the beginning of your workouts when you’re freshest and have the most energy.
Q: Weights or cardio first? A: Depends on your goals: lift weights first if you want to add lean muscle. Cardio first if you want to burn more calories and get leaner.
I usually train first thing in the morning. If I'm doing a weight training session, I will workout on an empty stomach. If I'm doing a huge workout or HIIT that is intense, I will eat something light such as a banana and almond butter. I have a very fast metabolism, so I make sure that I don't lose steam in the middle of a big workout. Sometimes, I will bring a protein bar and eat a couple of bites if it's an especially tough session.