If a person is overweight because they lack a clear understanding of the nutritional and calorific values of different foods, then it is enough for them to get advice from a nutritionist as to which foods to select in order to control their caloric intake.
如果肥胖是因為對食物的營養及熱量認識不清，那麼請教營養師如何選擇食物、控制熱量的攝取就夠了。