text: how do i gain weight with out taking any sort of pills, am 21, 36kg , am a lady? i want to gain weight but i do not want to take anything that could alter anything in me.i want to gain weight naturally and evenly. what should i do, am tired of looking skinny, and 36kg is too low for a lady!!!thanks for some people gaining weight can be very difficult...for me it seems to be enough to just look at food...:-) i think you should go see a doctor to find out why you are so skinny. maybe you suffer from thyroid hyperfunction, which is something that can be treated. just eating lots of fattening food will probably not help for someone like you.