Most keto programs were designed around male metabolism. For a woman over 35 — especially one entering perimenopause — none of those assumptions hold. Here is the biology of the female metabolism, the seven hormones keto influences, and the Shine™ adjustments that turn keto from a male-template diet into a method designed for the body you actually have.

If you eat less, exercise more, and the scale does not move, your hormones are likely the reason. Here are the five most common hormonal patterns that block weight loss in women — insulin resistance, cortisol dysregulation, thyroid suppression, estrogen-progesterone imbalance, leptin resistance — the symptoms that distinguish them, and what nutritional ketosis does at each level.