Our expert says:
Fructose is a naturally occurring sugar that is found in foods like fruit and table sugar. In countries like America, fructose is also produced from corn or maize syrup and is then called 'High-fructose corn syrup'. Most of the fructose sold commercially in SA is probably produced from cane sugar (also called table sugar or sucrose, which consists of one molecule of glucose and one molecule of fructose). Fructose has a low GI of 32, but it is not a good idea to ingest more than 20 g of fructose powder per day as it can cause weight gain and eye damage. The following GI-values are listed for other sugars: Honey (104), glucose (138), maltose (150), sucrose (92), lactose (65), high-fructose corn syrup (89) and maltodextrin (137). Most of these sugars thus have a high GI.
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