QI am a 16-year-old girl and my height is 5 ft, 10 inches. Every year (except for the last year), I have grown an inch taller and weighed 5 kilos more than the previous year, irrespective of how much I eat or exercise. I have been walking every day for the past three months for 30 minutes on the treadmill in addition to walking a kilometre back from school.

As for my diet, I have a proper breakfast — idlis, dosas or bread with a cup of coffee while lunch comprises one roti or paratha with subzi. Once I am back home, I have a bowl of poha or two chapatis, a bowl of salad, and a sweet, along with a cup of coffee. I  usually skip dinner and have a glass of warm milk at bedtime. Am I suffering from hyperthyroidism? How can I lose weight? 

AThis is clearly a case of over production of the growth hormone by the pituitary gland. The causes for over production are several and need to be looked into by your family physician. I would advise you to get it examined at the earliest.

I can see room for improvement in your diet. Include two fruits and three vegetables in your daily diet plan. Fruits and vegetables are low in calories, but rich in vitamins, minerals and fibre, which is what your body needs. Cut down on the coffee. At 16, I would recommend that you drink healthier beverages such as buttermilk, coconut water and light herbal teas. 

It is good to know that you are active, however, it is important to vary your workout in order to achieve your weight-loss goals. Walking is the first step towards increasing your heart rate, but it is not enough. You need to alternate it with a run, some spot jogging, climbing stairs, swimming, playing basketball, football etc.

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