Unfortunately you have gone past the barrier which professionals call, 'The Point of No Return'. You have essentially just thrown your health away.
I was in a situation very similair to you 5 years ago. I was 6 foot 3, and at a healthy 170 pounds. I was offered 3 slices of cake in addition to the one I had just had. As anyone would I immediately grabbed the cake slices and swallowed them in a single gulp. Then several days later I began to feel sick.
I went to my doctors office and he said that this irregular indulgence of food had adversely affected my Water Transcendent Fluid level (or a WTF level as he described it). Within the next week my weight has literally doubled and I cannot even leave my bed.
I must roll to the right to use the bathroom and roll to the left to eat from my food trough. My nurse wears a hazmat suit when she comes to change my trough. I have no friends and my life is now a complete mess.
So yes this will make you fat and I hope you're looking forward to it.
unfortunately