"We observed that, in moderation, your body has the machinery to handle sugar; it is when the system is overloaded over a long period of time that this machinery breaks down," said Brian Hoffmann, who led the research.
"Siphawule ukuthi esimweni esilinganiselwe, umzimba wakho ucubungula ushukela ngendlela efanele, futhi lapho uhlelo lugcwele kakhulu isikhathi eside, lo mshini uyabhidlika," kuchaza uHoffmann.