Nutrition for Perimenopause & Menopause Beginning in our late 30s and 40s, our bodies may start the transition to menopause (aka perimenopause). During this time, hormone levels fluctuate, affecting our mood, energy, and sleep. On top of that, there are health risks associated with menopause, such as the increased risk of heart disease and bone loss. Nutrition is a powerful tool that can help you manage your energy levels and reduce the risk of health conditions that accompany menopause.