A diet rich in fructose impacts the pregnant females' metabolic status and the free fatty acid content of their milk. The offspring born from fructose-fed mothers displays a very specific pattern of increased free fatty acids and altered lipid metabolism that persist throughout early life.
Increased fructose intake during pregnancy can cause significant changes in maternal metabolic function and milk composition, and therefore, alter the metabolism of their offspring. The research by the University of Otago, Wellington, was led by Dr Clint Gray, a Research Fellow in the Department of Paediatrics and Child Health. An increase in the fructose in the diets of female guinea pigs led to highly significant and consistent changes in the free fatty acids circulating in the blood of their offspring. This was despite the offspring consuming no fructose themselves.
‘Poor nutrition, with diets high in fructose and refined sugars, during pregnancy can lead to long-term consequences, such as obesity, diabetes, and cardiovascular disease in offspring, especially later in life, past 40 to 50 years.’
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The research is published in the international journal Frontiers in Endocrinology.Read More..
First author, PhD student Erin Smith, says "previous research has shown poor quality nutrition during pregnancy can predispose offspring to long-term consequences, including the development of obesity, diabetes and cardiovascular disease later in life".
"However, there has been a lack of data examining the impact of increased fructose intake before and during pregnancy and subsequent adverse effects on lactation, foetal development and offspring metabolic function."
The two experimental groups were fed either a control diet or a fructose diet prior to and during pregnancy. The fructose group was given supplementary fructose water to replicate increased sugar-sweetened beverage intake 60 days prior to mating and until the delivery of their offspring. Fructose made up 16.5 percent of their diets, closely resembling the average human consumption of fructose/sugar in Western countries, which is estimated at about 14 percent of average daily caloric intake.
"We found fructose had a significant impact on a pregnant females’ metabolic status and the free fatty acid content of their milk. We also provide the first evidence that offspring born from fructose-fed mothers display a very specific pattern of increased free fatty acids and altered lipid metabolism that persists throughout early life."
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She says the evidence suggests suboptimal maternal diets, such as diets high in fructose and refined sugars, may be contributing to the rise in metabolic diseases in humans observed during the past 40 to 50 years.
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Source-Eurekalert