It maybe not so easy in building the body, since it takes discipline and also your courage. Not to mention about diet, plus a more complete workout to do.
Moreover, what you eat also needs to be adjusted, thus you can find only the best ingredients to support.
Many available strategy you can try where building body can be something more success to run, here they are.
If a person wants to increase muscle mass then without a doubt try weight training.
You must try to make muscle more powerful, and make them more active. Surely you can also try some bodyweight like push up and also plank.
To reduce weight, in normal case, you must watch the number of calories amount. Just never practice it too excessively.
You need to ensure in keeping metabolism ideal and fast, and find the more positive effect in muscle building.
As usual, as long as you don't exceed the "dangerous" number, then you can apply the caloric deficit with healthy. Importantly, it's recommended to lose the fat for the process in gaining muscle.
And also with HIIT, do it for for some minutes and feel exactly best effect that you can feel right after has been run.
And you can use Healthguideblog too if needed a new plan.