It is often quoted that fructose has less of a negative impact on the body than glucose. This confusion probably arises because fructose is the most common sugar in fruit.
It is undoubtedly concerning how many ways sugar can potentially cause or aggravate cancer either directly or indirectly. Despite this information, however, cynics argue that as there is a lack randomised controlled trials (RCTs), it cannot be proven that sugar actually harms humans.
Foods with a high glycaemic index (GI) or meals with a high glycaemic load increase cancer risk via two pathways – directly influencing biochemical pathways that promote cancer development and growth; indirectly by contributing to the development of diseases that then have an influence on cancer.
Carbohydrates, or saccharides using their scientific name, are molecules consisting of rings of carbon, hydrogen and hydrogen atoms.
There remains considerable confusion in the media and debate among health professionals about sugar and risks of cancer but there really should not be – the evidence is very clear.