Their brain metabolism rates were comparable to the activity seen in normal weight women. (sciencedaily.com)
IF might be useful for overweight or obese individuals but I would not recommend this for normal weight women (even with the belly pooch). (integrativewomenshealthinstitute.com)
On average, normal weight women need to gain 25 - 35 pounds, overweight women should only gain 15 - 25, and women who are underweight should gain around 28 - 40 pounds. (lovingmomentsbras.com)