Correlation does not equal causation. There are plenty of variables other than diet that can more easily explain both an increase in prosperity and a decrease in childbearing. Examples: high paying jobs increase wealth and but decrease the time/energy needed available to raise a child. Or the less children one has the more money you can save. I think diet plays a negligible role in the relationship stated in the question.

Correlation does not equal causation. There are plenty of other variables other than diet that can more easily explain both an increase in prosperity and a decrease in childbearing. Examples: high paying jobs increase wealth and decrease the time/energy needed to raise a child. Or the less children one has the more money you can save. I think diet plays a negligible role in the relationship stated in the question.

Correlation does not equal causation. There are plenty of other variables other than diet that can more easily explain both an increase in prosperity and a decrease in childbearing. Examples: high paying jobs increase wealth and decrease the time/energy needed to raise a child. Or the less children one has the more money you can save. I think diet plays a negligible role in the relationship stated in the question.