Brigid Titgemeier explains why strict dieting doesn't work for midlife belly fat: insulin resistance makes your body hold onto visceral fat. Check your fasting insulin level; above 7 µU/mL signals resistance. A calorie deficit alone won't fix it.
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doesn't matter how deep your caloric deficit is. If your body is more insulin resistant, then you will hold on to fat more, especially around your visceral fat area or that belly fat. So this is why a lot of women will say, I'm following the same extremely low calorie diet that used to work for me in the past and it's not working, as you develop more insulin resistance. And actually, shifts in your weight can be an indicator of insulin resistance, which is why it's really important to not only test your hemoglobin A1C but also your fasting glucose and your fasting insulin so that you better understand Anything greater than a 7 for your fasting insulin will indicate signs of insulin resistance.