So here, at last, we have found a fundamental aspect of food and eating that has changed: the sensed nutritional value. For as long as humans and their ancestors existed, the taste of a calorie matched the energy it delivered. In the span of just a few decades, that has changed. Calories don’t “mean” what they used to. We are tampering with the very way the brain perceives food, and the implications are still revealing themselves. We know nutritive mismatch is harmful to the human body, that it disrupts metabolism on an elemental level. Here then is an even more disturbing question: What is
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