What 30% body fat looks like on a woman

What you see

The waist is clearly drawn and the silhouette is athletic. Standing, the belly is flat with a little softness low down. The legs are toned: the shape of the quadriceps shows when flexed, and the glutes have a defined form. The arms are slim, with muscle outlines hinted at under load. There is no six-pack, and at this level there should not be.

What it means

30% falls within the normal range for women and counts as a healthy point of balance. It demands no constant policing of food, does not interfere with the cycle and sits comfortably alongside regular training.

For amateur women in running, triathlon and cross-country skiing this is a working level: going lower gives a small gain in running economy but noticeably raises the risks — above all to the cycle and to bone density.

Getting to 20%

This is a big step — two figures down the scale at once, roughly 7–9 kg of fat. It is not justified for everyone.

• Keep the deficit small: 200–250 kcal, a pace of 0.25 kg per week, over six months or more.
• Treat the cycle as your main sensor. Missing or irregular periods while losing weight are not a "side effect" but a signal to stop: this is an early sign of relative energy deficiency.
• Strength training is mandatory. It protects bone tissue, which is the first thing to suffer in a deficit.