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A transient physiologic insulin resistance and hyperinsulinemia are characteristic of normal pregnancy. This insulin action has evolved during a period of human evolution that was characterized by a very low-carbohydrate nutrition. The development of gestational diabetes mellitus (GDM) is proposed to result from a collision of this evolutionary inheritance with our "modern" nutrition: The "Western" high-insulinogenic nutrition increases the postprandial demand for insulin significantly during the insulin resistant state of late pregnancy. In women with beta-cells that are not capable of maintaining the high insulin production, GDM develops. A restriction of high-insulinogenic carbohydrate may help to prevent the development of GDM.

Benign prostatic hyperplasia and hypertension are common age-related comorbidities. Although the etiology of benign prostatic hyperplasia (BPH) is still largely unresolved and poorly understood, a significant age-independent association was found between BPH and hypertension, indicating a common pathophysiological factor for both diseases. It has previously been suggested that the development of essential hypertension may be related to diet-induced hyperinsulinemia. This study follows the question, whether BPH may develop due to the same mechanism, thereby explaining the well-known comorbidity of these 2 disorders. The scientific evidence presented shows that BPH and hypertension share the same pathophysiological changes, with hyperinsulinemia as the driving force. It further shows that significant dietary changes during human history cause disruption of a finely tuned metabolic balance that has evolved over millions of years of evolution: high-insulinemic food, typical of current "Western" diets, has the potential to cause hyperinsulinemia and insulin resistance, as well as an abnormally increased activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system, alterations that play a pivotal role in the pathogenesis of BPH and hypertension. [ABSTRACT FROM AUTHOR]