generally people think that
thyroid is there one can not reduce weight. you can reduce weight, it just the effort need to be on right direction. you can start with Gilmore leaves powder early in the morning. very helpful to reduce
TSH level. and than make a balance of kcal intake for the whole day. there should be a difference of intake and outtake. and the deficit should be compensate with fiber.
she can also start with corriander,mint, jasmine leaves & black zeera powder in the morning or else during the day.
ask her to take balance diet.
half an hour physical activity in any form will be good. ( brisk walk/yoga/aerobics/ zumba etc)