What to watch with Progesteron and Blutzucker?

Progesterone can influence blood sugar (glucose) metabolism, especially in individuals with diabetes or insulin resistance. During pregnancy, rising progesterone levels contribute to decreased insulin sensitivity – a phenomenon known as 'physiological insulin resistance'. In hormone replacement therapy or progestin use (e.g., menopause, endometriosis), mild increases in blood glucose may occur. The effect varies by dose, progestin type, and lifestyle factors (diet, exercise, genetics). For those with diabetes or prediabetes, regular glucose monitoring is advised, especially when starting or adjusting therapy. Pharmacogenetic variants like CYP2C19*17 are not directly relevant because progesterone is primarily metabolized by CYP3A4, not CYP2C19. The evidence is mostly mechanistic and observational; large RCTs specifically examining progesterone–glucose interactions are lacking. Caution is warranted in women with metabolic syndrome or PCOS, as progesterone may further impair insulin sensitivity. Individual medical consultation and possibly an oral glucose tolerance test (OGTT) are recommended.