What is the optimal calorie intake for supporting female reproductive health?

The optimal calorie intake for supporting female reproductive health is 45 calories per kilogram of fat-free mass (FFM). This recommendation is based on research that indicates adequate energy intake is crucial for maintaining hormonal balance and supporting the menstrual cycle. Insufficient calorie intake can lead to hormonal disruptions that adversely affect fertility and overall reproductive function.

Caloric needs can vary based on factors such as age, activity level, and individual metabolic rates. However, the specific caloric density of 45 cal/kg FFM has been identified as a threshold that promotes reproductive health without risking undernutrition. This level of intake helps ensure that energy requirements are met, supporting critical processes like ovulation and maintaining a healthy body composition.

The other options reflect higher caloric intakes, which may not be necessary or may even lead to weight gain, particularly in sedentary individuals. Therefore, the recommendation of 45 cal/kg FFM is tailored to balance energy sufficiency with optimal reproductive health.