In this clip from tonight's edition of Operation Transformation, Alan Mullen from Co. Westmeath is shocked when he realises how much sugar he is consuming every week.
Click on the video link to see Alan and his family's reaction.
Also tonight, we find out how the leaders are adjusting to their new lifestyle and whether the changes are working, as the first three leaders step up on the scales.
Dr. Donal O’Shea travels to Finland to see how the people of North Karelia came together to transform their entire environment and turned the health of Finland around.
Don't miss Operation Transformation tonight at 8.30pm on RTÉ One.
