Keto and Hormones: How Low-Carb Eating Affects Women’s Health
Women’s hormonal health is intricately linked to diet, and the keto diet can have significant effects on oestrogen, progesterone, insulin and cortisol levels. Understanding these effects helps women get better results on keto.
Keto and Insulin
One of keto’s most powerful effects for women is its ability to lower insulin levels. High insulin is linked to PCOS, weight gain, acne and irregular cycles. By reducing carbs dramatically, keto helps normalise insulin and can restore hormonal balance.
Keto and Oestrogen
Fat tissue produces oestrogen, so as women lose body fat on keto, oestrogen levels can shift. For some women, especially those with oestrogen dominance, this is beneficial. Others may notice changes in their menstrual cycle, particularly in the first few months.
Keto and Cortisol
Very low-carb diets can temporarily raise cortisol, the stress hormone. This is why women on keto may benefit from keeping carbs slightly higher (50–70g on training days) and ensuring adequate sleep.
Tips for Women on Keto
Cycle your carbs with your menstrual cycle, eat plenty of non-starchy vegetables and avoid excessive calorie restriction. Keto can be a powerful tool when tailored to your unique hormonal needs.