I'm training 4 days a week to gain weight; some mass. But i'm also running 3 days a week to prepare for a marathon. Will I be able to gain some weight while running. I eat a lot of calories, carbs ...
I am setting a goal to gain ~8kg in 3 months. I have an average body build. I know that to gain weight I need to increase daily Calorie intake and do exercise. I don't want to hire a personal trainer ...