What sugar does to your body

BBC HomepageSkip to contentAccessibility HelpYour accountHomeNewsSportBusinessTechnologyHealthCultureArtsTravelEarthAudioVideoLiveMore menuMore menuSearch BBCHomeNewsSportBusinessTechnologyHealthCultureArtsTravelEarthAudioVideoLiveClose menu{"@context":"https://schema.org","@type":"VideoObject","name":"Dr Hazel Wallace: What sugar does to your body","description":"Just how bad for you is eating sugar? And why is fruit still a good option - even though it has lots of sugar?","thumbnailUrl":["https://ichef.bbci.co.uk/images/ic/1920x1080/p0nl4y4k.jpg","https://ichef.bbci.co.uk/images/ic/1232x1232/p0nl4y4k.jpg","https://ichef.bbci.co.uk/images/ic/688xn/p0nl4y4k.jpg","https://ichef.bbci.co.uk/images/ic/400xn/p0nl4y4k.jpg"],"uploadDate":"2026-05-14T11:18:13.115Z","duration":"PT1M20S"}What sugar does to your bodyTo play this video you need to enable JavaScript in your browser.This video can not be played CloseMade by BBC Ideas in partnership with The Open University Shareclose panelShare pageCopy linkAbout sharingRead descriptionBest of the BBCPudsey finds his voice: Be someone a child can talk to iPlayerWatchlist Add BBC Children in Need to your Watchlist in iPlayerWatchlistAddingWatchlistRemoveRemoving close panelAdded to WatchlistBBC Children in Need has been added to your iPlayer Watchlist.How will countries boycotting Eurovision affect the contest? SoundsSubscribe Add The Inquiry to My SoundsSubscribeSubscribingSubscribedUnsubscribeRemoving close panelAdded to My SoundsThe Inquiry has been added to your My Sounds.The globe’s spinning fast. Dive in before the end hits hard iPlayerWatchlist Add Race Across the World to your Watchlist in iPlayerWatchlistAddingWatchlistRemoveRemoving close panelAdded to WatchlistRace Across the World has been added to your iPlayer Watchlist.How the 'Fabiola Rule' in rollerblading came about SoundsSubscribe Add Sporting Witness to My SoundsSubscribeSubscribingSubscribedUnsubscribeRemoving close panelAdded to My SoundsSporting Witness has been added to your My Sounds.HomeNewsSportBusinessTechnologyHealthCultureArtsTravelEarthAudioVideoLiveTerms of UseAbout the BBCPrivacy PolicyCookiesAccessibility HelpParental GuidanceContact the BBCBBC emails for youAdvertise with usCopyright © 2026 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.