Effects of a (near) starvation diet?

your metabolism would be screwed up because it would go into starvation mode and consume fat from your body. the results are good at first, but if you ever go back to eating real food and stuff you would immediately put on weight. getting cold comes with the nature of being a light weight. there have been records of having upper lip hair grow in, in females periods stop because of being under weight, etc, etc. Just eat a healthy balanced diet. You will get your best results in the long run.