Overweight - a genetic deviation or consequences ICP?

I a week sit mainly on vegetables and a fish, sometimes I allow myself bread and cheese. Earlier on such ration I would become unprodutive, and now the weight even grows - for last week began more on 1,5 kg :((((
Whether it Can be concerned with ICP? And that to me is madly insulting - such victims, and weight in any! I rise on balance and to cry it would be desirable.

In the meantime scientists assert, that the obesity is promoted by presence of the certain genes which are inherited.
Chances to grow stout at those who inherits the certain version of the given gene, are higher 70%. Each sixth person has the extremely vulnerable genetic frame and weighs approximately on 3 kg more, than people, less to this subject. Their fatty adjournment also it is more on 15%.
Overweight - the main reason of illnesses of heart, a cancer and Diabetum of the second type. The adviser of the state public health service recently has declared, that the obesity represents more serious threat for the nation, than smoking, alcohol or poverty.

What to do? Can be at all it is necessary to sit on diets and torment itself fitness?