HeyJaredEating Science with Dr Fede
A newsletter about science, food, and the science of how food impacts our health. Public health, the exposome and synergistic effects of special interest.
- Indexed issues, last 90 days
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- Aug 27, 2026
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- Jul 3, 2026
Latest issues
Ten thousand steps was an advert, not a scientific finding (opens the original)
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Pillars of Lifestyle Medicine: Movement!Where ten thousand came fromIn the mid-1960s, a Japanese company began selling a pedometer called the manpo-kei, which translates roughly as the ten thousand steps meter. The name was chosen because the character for ten thousand resembles a walking figure, and because it was a memorable round number. The story is well-documented, though you will not find it in a trial, so treat it as context rather than evidence. What matters is that everything since has
The protein myth: what new longevity science says about how much you need (opens the original)
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At almost every talk I give, someone finds me afterwards with the same worry. They lean in, a little embarrassed, and ask whether they are getting enough protein or how they can get more. They have seen the shakes, the bars, the fortified cereals and the videos of people weighing chicken breast on the gram. They want to do right by their body, and they have been told, again and again, that doing right means eating more.I understand the worry, because the message is everywhere. In 2024, more than
Incretin mimicking medicines shrink your appetite. They don't improve your diet. (opens the original)
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A woman came to see me recently who had, by every measure on paper, succeeded. She had lost almost three stone on one of the weight-loss jabs. Her blood pressure was down, her knees ached less, and her bloods looked better than they had in years. Yet she sat across from me and told me she felt soft, weak and oddly tired, and she asked me what she had done wrong. She had done nothing wrong; she had simply not been given the tools to protect her health while the weight came off.<a class="image-lin
What the food industry keeps getting wrong about GLP-1 (opens the original)
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A man I saw in clinic this week told me the strangest thing had happened since he started his tirzepatide injections. The supermarket had gone silent. For twenty years the biscuit aisle had called his name, and now he could walk past it and feel nothing at all. He was relieved and also a little bereaved. “I don’t know who I am or what to eat,” he said, “when food stops shouting.”I thought about him often this week, sat in a room full of people trying to build the future of food around exactly th
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