Food & Diet : The Mediterranean Diet and What the Body Already Knew

Sept. 28/26

We didn't call it the Mediterranean diet growing up. We called it dinner. Apricots off the trees in season, tomatoes warm from the row crop, whatever vegetable was ready that week, olive oil if we had it, butter if we didn't. Nobody was tracking biomarkers. You ate what the ranch gave you, because that's what there was, and because it tasted better than anything that came out of a box.

I found myself thinking about that after reading a study out of JAMA Network Open — this week's assigned reading, and I mean that as encouragement, not a chore. Researchers followed more than twenty-five thousand women for up to twenty-five years, tracking how closely they stuck to a Mediterranean pattern: vegetables, fish, legumes, olive oil, not much red meat, not much processed food. The women who followed it most closely had up to a 23 percent lower risk of dying from any cause over the study period. The researchers also tracked thirty-three blood markers tied to metabolism and heart disease — inflammation, triglycerides, insulin resistance, the kind of numbers a lab can put on a page that a body can't put into words on its own. All of them moved in the right direction, and moved together, which is usually the sign that you're looking at something real and not a fluke in one column of the spreadsheet.

Twenty-five years is a long study. It's close to the twenty-seven I spent farming, and that's not nothing — you don't trust a season, you trust a run of them. But a cohort study isn't a field, and I've read enough of these over the years to know the difference. Nobody controlled what these women ate day to day, the way you'd control water and fertilizer on a test plot. Researchers asked, and people answered, and people misremember what they had for lunch same as anybody does. The 23 percent is real, but it's an average pulled out of thousands of different lives, different genes, different luck. It doesn't tell you what happens to any one particular woman, or man, who eats this way for the next quarter century. Averages never do. That's not a knock on the study — it's just what a study is, same as a soil report tells you what the ground can support, not what the actual crop does once the wind comes up in May and the whole plan has to bend.

What gets me is the order of operations. The Mediterranean pattern isn't a discovery, not really. People have been eating this way around that sea for thousands of years, long before anybody could measure a triglyceride or name an inflammatory marker. Whatever it is about olive oil and fish and vegetables that keeps a body running longer, people's bodies were finding it out on their own, one meal at a time, without a lab, without a control group, without a single spreadsheet. The science came along a lot later and started explaining, in its own language, something that had already been settled at the table generations before anyone thought to ask why.

That's usually how it goes with anything grown instead of manufactured. You know a good apricot before anyone hands you the sugar content. You know good soil by how it feels in your hand before the report comes back and confirms what your hand already told you. The measurement catches up to the knowing eventually — it doesn't replace it, and it never comes first.

So read the abstract if you want to, this week or any week. It's worth doing, and I don't say that about every study that crosses my desk. Just don't be surprised if what it tells you, in the end, is something you were already halfway sure of, sitting down to eat.

This is a record of what I've read and observed, not medical advice. I'm not a doctor, and nothing here should replace a conversation with one. Any drug, dose, or treatment decision -- Mounjaro included -- is between you and your own physician. What works in my reading or in the field doesn't automatically apply to your situation.

From the Field:

Food Safety Recalls & Outbreaks -- https://www.foodsafety.gov/recalls-and-outbreaks

Mayo Clinic -- mayoclinic.org

fitandwell.com

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