The mean annual consumption of sucrose plus fructose in developed countries is about 25% of the caloric intake. Fructose is more lipogenic than glucose. This high intake of sucrose (approximately 50 kg/year/person) has been contentiously implicated in influencing the health of humans, apart from caries, because a high consumption of sucrose/fructose in experimental animals (often rats) creates, among other things, hyperlipidemia, insulin resistance, hypertension, and diabetic-like tissue lesions (66). However, while a hyperlipidemic effect of sucrose and fructose has been demonstrated in a number of human studies, firm conclusions cannot be made because of great variations in the type of subjects, duration of intake, background diet, and study conditions ( 66). The general conclusion of an FDA-sponsored survey published in 1986 was that the present voluntary intake of sucrose and fructose is not harmful to humans ( 67). A more recent review, while accepting that the intake of sucrose was not a problem in normal individuals, suggested care when dealing with individuals with hypertriglyceridemia ( 68).
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WHAT IT IS A three-phase plan that has been likened to the low-carbohydrate Atkins program because during the first two weeks, South Beach eliminates most carbs, including bread, pasta, potatoes, fruit and most dairy products. In PHASE 2, healthy carbs, including most fruits, whole grains and dairy products are gradually reintroduced, but processed carbs such as bagels, cookies, cornflakes, regular pasta and rice cakes remain on the list of foods to avoid or eat rarely.