Han her diskuterer temaet om kjønnforskjeller når det kommer til respons på fastin:
No One's Power but Our Own: Paleo Sexist Woes, and an Invitation to Rise Up and Roar | Free The Animal
"Enter the MDA preface. Fasting is enormously popular in the paleosphere today. But it is a stressor, through and through. Couple our vigorous pursuit of optimality with ignorance of sex-specificity, and we land in a heaping pile of female health threats.
As my analysis of fasting points to, and as study after study after study on calorie restriction indicates, men can undergo metabolic stressors relatively painlessly, and in fact usually emerge in good health and fitness. Women, on the other hand, do not. The female body is designed first and foremost to guard its fertility, and for that reason the body strongly resists and is hurt by metabolic stress.
In many cases, both anecdotally and in the literature, women on restrictive diets—whether fasts or calorie-restricted diets, fat-restricted or carbohydrate-restricted diets, typically healthy diets by paleo standards—or unhealthy diets experience hindered mental health, energy, sleep quality, insulin and leptin signalling, thyroid activity, and HPA axis function. Moreover, because the body is detecting metabolic stress and wants to defend itself, restricted women sometimes actually gain weight. I have met, in fact, several women who undertake one to three day fasts and gain a couple of pounds. The dubious nature of these restrictive diets relative to women's health includes the effects of excessive exercise, particularly over-done HIIT.
This isn't to say that women shouldn't reduce calories from time to time, or certainly that they shouldn't engage in HIIT. We should. But female bodies cannot—straight up, they cannot—handle these stressors as well as men do. And even when they do experience benefits—which is often! especially for obese women—it is a sure bet that it occurs by a physiological mechanism unique to a man. In all metabolic influences—in energy intake, expenditure, type of energy utilized, amount of body fat on the person—women require more and different safeguarding than men in order to maintain optimal health. This is the truth of science and of evolution."