It is a disaccharide made up of glucose and galactose units. However, it's worth keeping in mind that the excessive consumption of HFCS and other sweeteners may contribute to elevated blood sugar levels, blood fats and subsequent weight gain. Research is yet to show any detrimental health effects of moderate consumption of fructose as part of a balanced diet. While most diabetics cannot tolerate sucrose, most can tolerate moderate amounts of fruit and fructose without loss of blood sugar control. Studies have shown that the consumption of large amounts of fructose may lead to increased appetite by impairing the body's ability to use insulin and to suppress circulating ghrelin (the appetite-stimulating hormone). When you eat too much fructose the liver cannot process it fast enough and instead, starts to make fats that are carried in the blood and stored as triglycerides - the body's main form of fat. As a result, blood sugar (glucose) levels do not rise as rapidly after fructose consumption compared to other simple sugars. It has been suggested that it is the glucose content of these sweeteners that may have contributed to the increase in cardiovascular disease and type 2 diabetes.įructose is handled by the body in a different way to glucose as it is metabolised in the liver. Sweeteners such as HFCS have a higher GI value due to the presence of glucose. It was once thought this made it a good substitute for table sugar, but there is now a growing body of research to question this. Consequently, its GI value is much lower, on average around 19. Because of the worldwide increase in the consumption of sweeteners - in soft drinks and foods containing high fructose corn syrup (HFCS) - fructose intake has quadrupled since the early 1900s.įructose is absorbed directly into the bloodstream during digestion and has no impact on insulin production or blood glucose levels.
Fructose is very sweet, roughly one-and-a-half times sweeter than sucrose (white sugar). Fructose or fruit sugar, is a simple sugar naturally occurring in fruit, honey, sucrose and high fructose corn syrup.
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