Step-by-step explanation:
She should eat less sugars and have an intensive training or/and regular activities.
If she ditched the sweets totally, she would be deprived and she would fail in exercising. Eating too much of something or not eating at all, isn’t good. But it’s well known that sugar is not nutrient at all, it only damages our health and makes us obese.
It would also be a good option to eat fruits or dark chocolate, instead of regular sweet, gmo foods,