How to become more taller naturally? My sis is 17 only but her height is only 5.2". what will we do? Parents are taller enough, though she has IBS

Unlikely to happen. Growth centers in long bones determine how tall you can grow.Most growth centers will close at 16-17 in girls. If your growth centers are open, a balanced diet/rest & healthy physical activity will support good growth.No special diet, exercise, medication or hormones can make you taller after your growth centers close.A chronic illness like IBS can decrease someones final height. .