Todays Aftenposten presents a study of obesity among kids. They find that the BMI of a three year old child is positively correlated with the mother’s BMI prior to, and during, birth.
They conclude that it is important to avoid overweight before and during pregnancy, in order to avoid obese children. Hence, it is interpret as something causal. However, as people living together tend to eat the same food and share lifestyle it is no wonder why different healt outcomes are correlated within families.
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