They start to assert themselves in every situation and meet challenges like young adults.  When social circle starts to widen, teens are always conscious about physical appearance, especially girls.  They are anxious to look best, and most of all to look slender in all occasions.Weight loss sounds like a struggle to some people, while there are ironically those who aspire to gain weight.  Losing weight is critical to those who are 20% over weight.  If being thin is quite a problem to some, the reality still shouts loud that it is ugly to be fat.  The onset of this issue starts in early teen-age years.  High schools are stressed out to be thin while they nibble on high calorie foods.  People with fast metabolism or those who weigh normally have the capacity to burn fat easier than those who overweight by heredity.Teen weight loss has to be ruled out even childhood years.  It starts during infanthood.  Based on researches, breastfed babies are less likely to suffer from obesity in their adult years.  Bottle fed babies tend to suck milk easily compared to breast fed babies who work harder to suck the natural way.  Infants who become overweight are higher with bottle fed babies and they carry it over until they reach adolescent years.  Once a child is already obese during childhood, the body has already adjusted to such metabolism.  Teens are also affected by hormonal changes.  Girls have monthly woes of hormonal peaks, which could be felt during and after menstrual cycle and during ovulation.  Water retention usually occurs before a period.  This could be avoided by eating less salty food.  Boys who are very active with activities tend to eat more but could find balance in shedding fats easily.  They are also prone to obesity given the right formula of eating too much, eating oily/fatty foods and not shedding the excess calories.  Needless to say, being overweight knows no gender except for the biological reality that boys are more muscular by girls.  By nature girls have 25% more body fat compared to boys because their bodies are prepared for nurturing children.  Weight loss for teen does not have to be complicated.  If the teen is excessively problematic about the issue, it is important to consult a doctor and know the reason behind the abnormal weight.  The doctor will determine how to attack the real problem first rather than giving ineffective methods of diets.  The doctor will know the teen's daily habit and lifestyle from where he can base his judgment in giving the right nutritional advice.  Exercise is an important part of routine session to be undergone by a teen.  This is to trim the muscles during weight loss.  Exercise not only improves circulation but it also boosts the functioning of the body.Effective dieting is like a goal with rules to be followed.  If an expert has tabulated a weight loss diet, it should be complied with great courage and determination to get the desired result.  There is no room for panic and plunging to fast methods of weight loss.  It is to make the method slow but sure.  This way, the weight loss is permanent.