Myths vs facts: Progesteron and Sport

The question of myths vs facts about progesterone and sport is relevant, but the scientific evidence is limited and often misunderstood. A common myth is that progesterone fundamentally impairs athletic performance. In reality, progesterone has complex effects: it can increase respiratory rate, slightly raise body temperature, and influence carbohydrate metabolism. During the luteal phase of the menstrual cycle, when progesterone is high, some women report reduced endurance or increased fatigue. However, studies show no consistent performance decrement – individual variability is large. Another myth: progesterone causes unwanted weight gain. Progesterone can promote water retention, but not significant fat gain. Fact: progesterone may play a role in recovery and muscle building due to its anti-inflammatory properties, but evidence is mostly mechanistic or from animal models. Consumer DNA tests analyzing progesterone-related genes lack clinical validation for sports optimization. Conclusion: Progesterone's effects on sport are individual and cycle-dependent. Those aiming to optimize performance should track their cycle but not believe blanket myths. Safety note: If experiencing severe cycle symptoms or performance drops, seek medical evaluation.