Weight Gain Diet?

If you are naturally slim and want to put on a lot of muscle then you are going to have to go on one of those powerlifting programs. There are plenty to choose from but they all require a fairly intensive gym and weights program. You can't achieve the sort of weight gain you want just by running or similar. Cross fit or circuit training might get you some of the way there. You will need to supply your body with much more protein than usual. Because protein is usually packaged with fat (juicy steak) or carbs (lentils) then you can often end up eating too many calories. So you need to major on whey protein shakes, chicken breast or egg whites to support a high-level of weight training without gaining fat.

In terms of specific programs that I know people have used successfully;

1) My husband used the stronglifts 5x5 program. There is a good website, facebook groups and an app you can use to manage your training.

2) My Dad swears by the P45 training program. He uses it to slim down and rapidly gain muscle and fitness.

eat an excess of kcal, but make sure its things like meat fish etc and work out hard! its kind of the opposite to what i would like to do(burn fat and get lean)