Developmental Programming · what the womb writes for decades

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Pregnancy & Lactation
Developmental programming explains why the nutritional environment in pregnancy leaves effects on a child that last for decades; how much of each nutrient to take and when is a separate dosing table, and the two need to be read together.
Eaten Isn't Delivered
What you eat is not automatically what reaches the fetus: the amount in the food, absorption in the gut, transfer across the placenta and individual differences all have to line up. Too much is harmful too: taking more than about 10,000 IU a day of preformed vitamin A from supplements in pregnancy is associated with a higher risk of birth defects. What the nutrients do to the child over the following decades, once delivered, is the question developmental programming answers.

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More than growing a baby

EVIDENCEREVIEW 1 · COHORT 1

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Pregnancy nutrition is usually described as growing the baby: eat more, grow big. But it is also doing something less visible. During critical windows of development, the nutritional environment adjusts the default settings of the child's future metabolism, blood vessels and nervous system, and those settings may stay in use for decades. The field is called developmental programming.

The first clue came from the British physician Barker: the lighter a man was at one year of age, the higher his chance of dying of ischemic heart disease as an adult (Barker 1989). To say it up front, so it does not frighten anyone: this is an observed association, not "if you fall short of something, your child will certainly get sick." The causal mechanism behind it is inferred mainly from animal experiments.

Educational content, not medical advice — consult a clinician.

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Developmental Programming · what the womb writes for decades

Story

Connected to · 2

cofactor · 2

Pregnancy & Lactation
Developmental programming explains why the nutritional environment in pregnancy leaves effects on a child that last for decades; how much of each nutrient to take and when is a separate dosing table, and the two need to be read together.
Eaten Isn't Delivered
What you eat is not automatically what reaches the fetus: the amount in the food, absorption in the gut, transfer across the placenta and individual differences all have to line up. Too much is harmful too: taking more than about 10,000 IU a day of preformed vitamin A from supplements in pregnancy is associated with a higher risk of birth defects. What the nutrients do to the child over the following decades, once delivered, is the question developmental programming answers.

Read full story

Stop 1/6

More than growing a baby

EVIDENCEREVIEW 1 · COHORT 1

READ THE ORIGINAL

Pregnancy nutrition is usually described as growing the baby: eat more, grow big. But it is also doing something less visible. During critical windows of development, the nutritional environment adjusts the default settings of the child's future metabolism, blood vessels and nervous system, and those settings may stay in use for decades. The field is called developmental programming.

The first clue came from the British physician Barker: the lighter a man was at one year of age, the higher his chance of dying of ischemic heart disease as an adult (Barker 1989). To say it up front, so it does not frighten anyone: this is an observed association, not "if you fall short of something, your child will certainly get sick." The causal mechanism behind it is inferred mainly from animal experiments.

Educational content, not medical advice — consult a clinician.