Why does a lot of schoolboy eat not fat?

Wither invite, oneself are born in 1986, this year 30+ , height 184, weight 64, graduate from the university up to now more than 10 years gain weight 4 kilograms, I am to which belong to to plant how eat not long meat the sort of, I also want to grow the flesh, tried a lot of methods trashy, without solution, a lot of schoolgirls say to envy me, actually among them anguish has him to know only