Does High Prolactin Cause Weight Gain?

Yes, high prolactin levels can cause weight gain through multiple mechanisms. Elevated prolactin disrupts normal metabolism by interfering with insulin sensitivity and glucose regulation, leading to increased fat storage. Studies show that prolactin levels above 25 ng/mL in women and 15 ng/mL in men often correlate with unexplained weight gain of 10-30 pounds. High prolactin also suppresses sex hormones like estrogen and testosterone, which normally help maintain healthy body composition. Additionally, prolactin can increase appetite and cravings for high-calorie foods while reducing energy expenditure. Weight gain from hyperprolactinemia typically occurs gradually over months and may be more pronounced in the abdominal area.

Related Questions

• What are the normal prolactin levels for men and women?

• How is high prolactin treated to prevent weight gain?

• Can prolactin-lowering medications help with weight loss?

• What other symptoms accompany high prolactin levels?

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