More Complicated Than Calories

From The Atlantic comes this report from Kristin Wartman that maybe what's making us fat isn't just the calories we eat: it's the fact that we're surrounded by pollutants and chemicals that are collectively and profoundly changing our metabolism:

Lustig echoes vom Saal's belief that a wide range of substances in our food supply and our environment are likely leading to obesity and metabolic disease based on hosts of studies of various substances. These include soy-based infant formula, phthalates (used in many plastics), PCBs (found in coolant and electrical equipment), DDE (a type of pesticide), fungicides, and atrazine (a common pesticide).

If the obesogen theory comes to be accepted and casts doubt on the energy balance model, the food industry will be in trouble. It would be harder to keep promoting diet and "health" foods that may be low in calories but that also contain an array of substances that may actually prove to contribute to weight gain.

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