Journal
OBESITY
Volume 29, Issue 11, Pages 1813-1824Publisher
WILEY
DOI: 10.1002/oby.23224
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Funding
- Australian Government Research Training Program Stipend
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A balanced maternal diet is vital for fetal development and fat reserves for lactation. The body makes multiple adaptations during pregnancy to meet energy demands, with the central nervous system playing a key role in food intake and energy balance regulation. Understanding food intake regulation during pregnancy can help prevent maternal under- or overnutrition.
A sufficient and balanced maternal diet is critical to meet the nutritional demands of the developing fetus and to facilitate deposition of fat reserves for lactation. Multiple adaptations occur to meet these energy requirements, including reductions in energy expenditure and increases in maternal food intake. The central nervous system plays a vital role in the regulation of food intake and energy homeostasis and responds to multiple metabolic and nutrient cues, including those arising from the gastrointestinal tract. This review describes the nutrient requirements of pregnancy and the impact of over- and undernutrition on the risk of pregnancy complications and adult disease in progeny. The central and peripheral regulation of food intake is then discussed, with particular emphasis on the adaptations that occur during pregnancy and the mechanisms that drive these changes, including the possible role of the pregnancy-associated hormones progesterone, estrogen, prolactin, and growth hormone. We identify the need for deeper mechanistic understanding of maternal adaptations, in particular, changes in gut-brain axis satiety signaling. Improved understanding of food intake regulation during pregnancy will provide a basis to inform strategies that prevent maternal under- or overnutrition, improve fetal health, and reduce the long-term health and economic burden for mothers and offspring.
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