What body fat percentage indicates 'lean' for females?

The range of 15-18.9% body fat is typically recognized as an indication of a 'lean' body composition for females. This classification reflects an optimal balance where muscle mass is relatively high compared to body fat, supporting athletic performance and overall health. Women within this percentage range often have well-defined muscle tone and lower levels of overall body fat while still maintaining essential fat necessary for hormonal balance and reproductive health.

Body fat percentages below 15% can be associated with increased health risks, including hormonal disturbances and other physiological issues, which is why they are not considered healthy or sustainable for most women. Conversely, higher body fat percentages indicate a more average or higher body fat level, which does not align with the defined parameters of being classified as 'lean'. This understanding of body composition categories is essential for developing appropriate fitness and nutrition programs.