summarise Dr. Stacy Sims: Female-Specific Exercise & Nutrition for Health, Performance & Longevity

Dr. Stacy Sims argues that women benefit from exercise and nutrition strategies tailored to female physiology and hormonal changes across the menstrual cycle and life stages. 1

1. Different responses: Some nutrition and training principles apply to everyone, but research also shows areas where women have distinct needs—so approaches designed around female physiology can better serve women’s health and performance. 2

2. Menstrual-cycle effects: Sims recommends tracking individual cycles and how training feels, rather than assuming the same phase affects every woman alike. She describes the low-hormone phase—from the first day of bleeding through ovulation—as a potentially better time for intense or heavy training; in the week before a period, additional carbohydrate and protein may help support training. 3 4

3. Nutrition strategies: Fueling around exercise is important; Sims cautions that fasted training can increase stress and make it harder to reach desired training intensities. She also emphasizes adequate protein and carbohydrate, including increasing both before a period when appropriate. 5 6

4. Menopause and aging: Sims highlights heavy resistance training, jump training, sprint intervals, and sufficient protein as key approaches for supporting bone and muscle as women age. She also describes perimenopause as a major physiological transition and encourages women to prepare for it with appropriately structured training. 7 8

5. Women-specific evidence: Sims challenges conclusions based on small studies of limited groups of women and calls for attention to individual differences, including whether women ovulate and how they respond across their cycles. 9 10